CN204128175U - A kind of electromagnet air-heater - Google Patents

Abstract

The utility model discloses a novel electromagnetic heating fan, which comprises a base, a box body and an electromagnetic heating device; casters, a blower and a control panel are arranged under the base; the box body is fixed on the base; the A heating box is arranged in the box; the controller is provided with a timer and a relay switch microprocessor; an electromagnetic heating device is arranged in the heating box; a fire fiber blanket is arranged between the box and the heating box; The heating device includes an AC power supply, an electromagnetic heater body, an insulating sleeve, wires, fins and a mesh protective cover; the electromagnetic heater body is made of magnetic materials, and an insulating sleeve is arranged outside the heater body; the heating There is a gap between the device body and the insulating sleeve; the beneficial effects of the utility model are: the utility model is practical and energy-saving, simple in structure, low in cost, long in service life, and low in maintenance costs; the temperature range of hot air can range from tens of degrees to four Baidu.

Description

A new type of electromagnetic heating fan

technical field

The utility model relates to a heat blower for agricultural greenhouses, in particular to a novel electromagnetic heat blower.

Background technique

The electric fan is the first choice for the upgrading of modern industrial heat sources, and it is the best hot air source configuration for automatic machinery such as hot air conveying furnaces, drying furnaces, ovens, and packaging machines. Electric blowers have been widely used in chemical industry, electronics, food, pharmaceuticals, cleaning, heat treatment and other industrial sectors, and are also widely used for heating in homes, factory workshops, and construction sites. The electric heater is mainly composed of an electric heater and a blower. The main component of the electric heater is a heating element. The heating element of the electric heater produced now is mainly a heating wire made of nickel-chromium alloy, and some use a stainless steel heating element. The blower sends cold air into the heater, passes through the electronic components that generate heat after being energized, and turns it into hot air for users to use. The advantage of the electric heater is that it is easy to use, and the hot air is smokeless and tasteless. The disadvantage is high power consumption, high manufacturing and maintenance costs, because the nickel-chromium wire itself is of high value, and it is easy to burn out and needs to be replaced frequently.

Utility model content

The purpose of this utility model is to provide a new type of electromagnetic heater to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions:

A new type of electromagnetic heating fan, including a base, a box body and an electromagnetic heating device; casters, a blower and a control panel are arranged under the base; the box body is fixed on the base; the right side of the box body A control circuit board, a controller and a heat-melt pipe overheating protection device connected to the control panel through wires are provided; a heating box is provided in the box; a timer and a relay switch microprocessor are provided in the controller; The air outlet of the blower is connected to a heating box; at the air outlet of the heating box, a thermocouple is suspended, and the thermocouple is fixed on the base; an electromagnetic heating device is arranged in the heating box; the box and A fire fiber blanket is arranged between the heating boxes; the electromagnetic heating device includes an AC power supply, an electromagnetic heater body, an insulating sleeve, wires, fins and a mesh protective cover; the electromagnetic heater body is made of magnetic materials, and the heater An insulating sleeve is arranged outside the body; there is a gap between the heater body and the insulating sleeve; the wire is wound on the insulating sleeve; the fins are welded inside the heater body; Arranged around the heater body, or arranged along the length of the heater body; the mesh protective cover is made of non-metallic materials; there is a gap between the protective cover and the wire; the 20-30kHz high-frequency alternating current is passed through the wire Power supply; the cross-section of the electromagnetic heater is set to be circular, oval or rectangular.

Further, the control panel is provided with a display screen and touch buttons.

Further, the thickness of the refractory fiber blanket is 25-30mm.

Further, the casters are universal wheels made of rubber.

Compared with the prior art, the beneficial effects of the utility model are:

1. The utility model is practical and energy-saving. Because it is heated by electromagnetic induction, it saves about 30% of electricity than heating with resistance wire, and has a simple structure and low cost;

2. The utility model has low cost, long service life and low maintenance cost;

3. The electromagnetic heater has no vulnerable parts and less maintenance during use;

4. The utility model can be used in a variety of industrial sectors and places. It can be used for agricultural planting, food heat preservation, etc., and the temperature range of hot air can range from tens of degrees to more than 400 degrees, and it can be used in industry and agriculture for more than fifty degrees. kilowatt electric heater.

Description of drawings

Fig. 1 is the structural representation of novel electromagnetic heating fan;

Fig. 2 is a schematic cross-sectional view of the electromagnetic heating device in the novel electromagnetic heating fan.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 1-2, in the utility model embodiment, a kind of new type electromagnetic heating blower comprises base 1, box body 6 and electromagnetic heating device; Described base 1 is provided with caster 13, air blower 7 and control panel 2; the caster 13 is a universal wheel made of rubber; the box 6 is fixed on the base 1; the right side of the box 6 is provided with a control circuit board connected to the control panel 2 through wires in sequence 10. Controller 11 and thermal melt pipe overheating protection device 12; said box body 6 is provided with a heating box 4; said controller 11 is provided with a timer and a relay switch microprocessor for controlling the working time of the circuit , power; the control panel 2 is used to adjust the controller 11, and the control panel 2 can display the working state of the heating device, and is provided with a display screen and a touch button; the air outlet of the blower 7 is connected to the heating box 4; At the air outlet of the heating box 4, a thermocouple 3 is suspended, and the thermocouple 3 is fixed on the base 1; a heating device connected with a wire is arranged in the heating box 4; A high-purity refractory fiber blanket 5 with a thickness of 25-30mm is arranged between them; the thermal conductivity of the refractory fiber blanket 5 is low, and its refractory temperature is 1200-1260°C, with good heat preservation effect and low heat loss; the electromagnetic heating device includes AC Power supply 9, electromagnetic heater body 15, insulating sleeve 16, wire 17, fin 18 and mesh protective cover 19; the electromagnetic heater body 15 is made of magnetic material, and the heater body 15 is provided with an insulating sleeve 16; there is a gap between the heater body 15 and the insulating sleeve 16; the wire 17 is wound on the insulating sleeve 16; the fins 18 are welded inside the heater body 15; the fins 18 can Arranged along the circumference of the heater body 15, or along the length direction of the heater body 15, the fins 18 increase the heat exchange area; the mesh protective cover 19 is made of non-metallic materials; There is a gap, so that the heat generated by the wire 17 can be dissipated, which not only protects the safe use of the wire 17, but also ensures personal safety; the AC power supply 9 of 20-30KHz high-frequency alternating current is passed through the wire 17; according to the principle of electrical engineering, when the wire 17 When the high-frequency alternating current is applied, a high-frequency alternating magnetic field is generated in the coil. Under the action of the magnetic field, an eddy current is generated in the heater body 15, which makes the heater body 15 generate high temperature. When the cold gas is compressed by the blower 7 and passes through the heater When the body is used, it exchanges heat with the high-temperature heater body 15 and fins 18, and the cold gas is heated into hot air for use; the cross-section of the electromagnetic heater is set to be circular, elliptical or rectangular.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to fall within the scope of the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (4)

1. an electromagnet air-heater, comprises pedestal (1), casing (6) and electromagnetic heater; It is characterized in that, described pedestal (1) below is provided with castor (13), air blast (7) and control panel (2); Described casing (6) is fixedly arranged on pedestal (1); The right side of described casing (6) is provided with the control circuit board (10), controller (11) and the tempreature bulb overtemperature protection system (12) that are connected successively by wire with control panel (2); Heating cabinet (4) is provided with in described casing (6); Described controller (11) is provided with timer and relay switch microprocessor; Heating cabinet (4) is connected with the air outlet of air blast (7); The air outlet place of described heating cabinet (4), hangs and arrange thermocouple (3), and thermocouple (3) is fixed on pedestal (1); Described heating cabinet is provided with electromagnetic heater in (4); Refractory fiber blanket (5) is provided with between described casing (6) and heating cabinet (4); Electromagnetic heater comprises AC power (9), electromagnetic heater body (15), insulating sleeve (16), wire (17), fin (18) and netted protective sleeve (19); Described electromagnetic heater body (15) is manufactured by magnetic material, and heater body (15) is outside equipped with insulating sleeve (16); Gap is left between described heater body (15) and insulating sleeve (16); Described wire (17) is wrapped on insulating sleeve (16); Described fin (18) is welded on heater body (15) inner side; Described fin (18) along heater body (15) circumference, or is arranged along heater body (15) length direction; Described netted protective sleeve (19) manufactures by nonmetallic materials; Gap is left between described protective sleeve (19) and wire (17); The AC power (9) of logical 20-30kHz high-frequency alternating current in described wire (17); Described electromagnetic heater cross section is set to circle, ellipse or rectangle.

2. electromagnet air-heater according to claim 1, is characterized in that, described control panel (2) is provided with display screen and touch key-press.

3. electromagnet air-heater according to claim 1, is characterized in that, the thickness of described refractory fiber blanket (5) is 25-30mm.

4. electromagnet air-heater according to claim 1, is characterized in that, the universal wheel that described castor (13) is quality of rubber materials.