All-electromagnetic hot air unit equipment

Abstract

The utility model relates to the field of electromagnetic hot-air blowers, in particular to all-electromagnetic hot-air unit equipment, which comprises a plurality of electromagnetic heaters symmetrically distributed on a ventilation pipe, a folding and unfolding mechanism and the like, wherein the folding and unfolding mechanism mainly comprises a plurality of double-thread screws and is used for controlling the electromagnetic heaters to be opened and closed on the ventilation pipe so as to effectively heat the change of a coverage area; compared with the prior art, the electromagnetic hot air unit has the advantages that the electromagnetic hot air unit obtains corresponding heat on the basis of the principle that airflow flowing in the ventilation pipe at a uniform speed and the contact degree of the airflow and a heating area within a fixed time, the size of the area where the airflow is continuously heated in the ventilation pipe is properly changed, and therefore the temperature of the exhausted airflow is adjusted.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic hot air blowers, specifically to a fully electromagnetic hot air blower unit. Background Technology

[0002] Electromagnetic hot air units utilize the heat generated by coils under the electrothermal effect to heat the airflow inside the duct they are wound around. This type of equipment is now widely used in various fields such as industrial processing and agricultural production.

[0003] For electromagnetic hot air units to change the temperature of the exhaust airflow by adjusting the wind speed or the heating level of the electromagnetic heater, fluctuating wind speed can be detrimental to production in some applications. For example, in agricultural greenhouses, a low wind speed can prevent plants far from the exhaust vent from receiving timely and effective heat replenishment, while a high wind speed can damage plants near the exhaust vent. Furthermore, changing the heating level of the coil requires an expensive frequency conversion system.

[0004] In order to change the temperature of the exhaust airflow when the above-mentioned adjustment methods are unsuitable or cannot be sampled, a fully electromagnetic hot air unit device is provided. Utility Model Content

[0005] I. Technical problems to be solved

[0006] The technical problem to be solved by this invention is to be able to easily and effectively change the temperature of the airflow discharged from the electromagnetic hot air unit without changing the wind speed and the amount of heat supplied.

[0007] II. Technical Solution

[0008] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a fully electromagnetic hot air unit equipment, including a chassis, a ventilation pipe with open ends connected inside the chassis, an intake fan and an exhaust pipe connected to the ventilation pipe respectively installed at both ends of the chassis, and an electromagnetic heater for heating the airflow in the ventilation pipe is installed on the outside of the ventilation pipe.

[0009] The electromagnetic heaters are arranged in multiple groups and are symmetrically distributed at both ends of the ventilation pipe. The housing is equipped with a retraction mechanism that allows the electromagnetic heaters to open and close uniformly on the ventilation pipe. With the medium flow rate in the ventilation pipe remaining constant, the total amount of heat received by the medium in the ventilation pipe is controlled by changing the degree of concentration of the electromagnetic heaters on the ventilation pipe.

[0010] Furthermore, the retracting mechanism contains multiple sets of position adjustment components that correspond to and cooperate with each pair of electromagnetic heater groups, and all the position adjustment components are connected to a transmission system.

[0011] Furthermore, the position adjustment assembly includes a double-ended screw rotatably mounted on the chassis below the ventilation duct. Both ends of the double-ended screw are threaded with sleeves. A slide is connected between the sleeves and the electromagnetic heater. A limiting assembly is connected inside the chassis to prevent the electromagnetic heater from rotating with the slide.

[0012] Furthermore, the limiting component includes multiple slide rails installed inside the top of the chassis, and the two ends of the slide are connected upwards with slide rods that are slidably connected to the chassis through the top of the slide rails.

[0013] Furthermore, the transmission system includes gears mounted on each double-ended screw. A motor is installed on one side of the bottom of the chassis and drives and cooperates with the bottom double-ended screw. A bracket for mounting the suction fan and the motor is connected to one side of the chassis. The double-ended screws are evenly arranged in sequence below the ventilation pipe, and the gears on two adjacent double-ended screws are meshed with each other, and their threaded structures extend in opposite directions.

[0014] Furthermore, the electromagnetic heater assembly installed inside the chassis has its thread pitch on the matching double-ended screw structure arranged in a regular increasing manner, following the arrangement sequence from the center to the end of the ventilation duct.

[0015] III. Beneficial Effects

[0016] The advantages of this utility model compared with the prior art are as follows: This electromagnetic hot air unit is based on the principle that the airflow flowing at a uniform speed in the ventilation pipe and the degree of contact with the heating area within a fixed time period obtains the corresponding heat. By appropriately changing the size of the area in the ventilation pipe where the airflow is continuously heated, the temperature of the exhaust airflow can be regulated. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the external structure of a fully electromagnetic hot air unit according to this utility model. Figure 1 .

[0018] Figure 2 This is a schematic diagram of the external structure of a fully electromagnetic hot air unit according to this utility model. Figure 2 .

[0019] Figure 3 This is a schematic diagram of the internal structure of a fully electromagnetic hot air unit according to this utility model. Figure 1 .

[0020] Figure 4 This is a schematic diagram of the internal structure of a fully electromagnetic hot air unit according to this utility model. Figure 2 .

[0021] Figure 5This is a schematic diagram of the internal structure of a fully electromagnetic hot air unit according to this utility model. Figure 3 .

[0022] Figure 6 yes Figure 3 A schematic diagram of the structure of part A.

[0023] Figure 7 yes Figure 4 A schematic diagram of the structure of part B.

[0024] Figure 8 yes Figure 5 A structural diagram of part C.

[0025] As shown in the figure: 1. Chassis, 2. Ventilation duct, 3. Intake fan, 4. Exhaust duct, 5. Electromagnetic heater, 6. Drive frame, 7. Slide rod, 8. Slide rail, 9. Screw sleeve, 10. Double-ended screw, 11. Gear, 12. Motor, 13. Bracket. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings.

[0027] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: a fully electromagnetic hot air unit, combined with the attached... Figure 1-5 It includes a chassis 1, and a ventilation pipe 2 with open ends is connected inside the chassis 1. An intake fan 3 and an exhaust pipe 4 connected to the ventilation pipe 2 are respectively installed at both ends of the chassis 1. An electromagnetic heater 5 for heating the airflow in the ventilation pipe 2 is installed on the outside of the ventilation pipe 2. The electromagnetic heater 5 is provided in multiple groups and is symmetrically distributed at both ends of the ventilation pipe 2 in a regular manner. When the flow rate of the medium in the ventilation pipe 2 remains constant, the total amount of heat received by the medium in the ventilation pipe 2 is controlled by changing the concentration degree of the electromagnetic heater 5 on the ventilation pipe 2.

[0028] An electromagnetic hot air blower heats air by passing it through an external ventilation duct 2 filled with coils, where it is heated by electromagnetic heating and then discharged as hot air.

[0029] When the medium flow rate remains constant, the time consumed by the medium through a certain section of the ventilation pipe 2 is constant. During this time period, the amount of heat exchange generated between the electric heater and the medium is limited by the contact time between the two. By expanding or shrinking the effective heating zone in the ventilation pipe 2, the degree of heat directly and effectively received by the medium in the ventilation pipe 2 is regulated, thereby controlling the temperature of the airflow discharged from the electromagnetic hot air unit.

[0030] Combined with appendix Figure 3-5 and appendix Figure 7The housing 1 is equipped with a retraction mechanism that allows the electromagnetic heaters 5 to move open and close uniformly on the ventilation duct 2. The retraction mechanism contains multiple sets of position adjustment components that correspond to each pair of electromagnetic heaters 5. The position adjustment components include a double-ended screw 10 rotatably installed in the housing 1 below the ventilation duct 2. Both ends of the double-ended screw 10 are threadedly connected to a screw sleeve 9. A slide is connected between the screw sleeve 9 and the electromagnetic heater 5. A limiting component is connected in the housing 1 to prevent the electromagnetic heaters 5 from rotating with the slide. The limiting component includes multiple slide rails 8 installed in the top of the housing 1. The two ends of the slide are connected upward to slide rods 7 that are slidably connected to the housing 1 through the top of the slide rails 8.

[0031] With the rotation of the double-headed screw 10, the screw sleeves 9 at both ends and the slide can be adjusted to limit the movement of the electromagnetic heaters 5 carried by the slide, so as to achieve the effect of opening, closing and retracting of a set of electromagnetic heaters 5 with the center of the ventilation pipe 2 as the base point.

[0032] Combined with appendix Figure 3 Appendix Figure 5 Appendix Figure 6 and attached Figure 8 The position adjustment components are all connected to a common transmission system, which includes gears 11 mounted on each double-ended screw 10. A motor 12 is mounted on the bottom side of the housing 1 and is mutually driven and engaged with the bottom double-ended screw 10. A bracket 13 for mounting the suction fan 3 and the motor 12 is connected to one side of the housing 1. The double-ended screws 10 are evenly arranged in sequence below the ventilation pipe 2, and the gears 11 on two adjacent double-ended screws 10 are meshed with each other, and their threaded structures extend in opposite directions. The electromagnetic heaters 5 groups installed in the housing 1 are arranged in a regular pattern with the pitch of the threaded structure on their matching double-ended screws 10, according to the arrangement order from the center to the end of the ventilation pipe 2.

[0033] The electromagnetic heater 5 contains a control system and an electromagnetic coil. They are arranged in two symmetrical groups around the ventilation pipe 2. Inside the housing 1, each electromagnetic heater 5 is equipped with a position adjustment component mainly composed of a double-headed screw 10. The motion principles of each group are similar. However, in order to achieve synchronous movement and the effect of unified concentration after merging and uniform distribution after dispersion, as well as to obtain reasonable movement under the transmission of the sampling gear 11, the thread structure on each double-headed screw 10 is reasonably designed, and its parameters include pitch, thread extension direction, etc.

[0034] The retraction mechanism uses a motor 12 to drive the opening and closing of each electromagnetic heater 5. The motor 12 is installed below the suction fan, and its power output shaft is directly connected to the lowest double-headed screw 10. Under its operation, the lowest double-headed screw 10 is first rotated. Then, the double-headed screw 10 is driven by the gears 11 that mesh with the adjacent double-headed screw 10 above it, causing the latter to rotate. This is done sequentially through each set of meshing gears 11, causing all the double-headed screws 10 to rotate, ultimately realizing the adjustment and arrangement of the electromagnetic heater 5 groups on the ventilation pipe 2.

[0035] In specific implementation of this utility model, when the electromagnetic hot air blower is in use and the suction fan and electromagnetic heating system cannot be adjusted or do not need to be adjusted, the motor 12 drives the electromagnetic heater group 5 to move, thereby changing the temperature of the airflow ejected from the blower group. When the temperature is to be set to the lowest level that the blower group can be configured, each electromagnetic heater 5 is concentrated at the center of the ventilation pipe 2. In this way, the airflow entering the ventilation pipe 2 cannot obtain heat at the inlet end and cannot be heated. After reaching the middle position, as it is continuously pushed forward, the contact time with the heating area covered by the electromagnetic heater 5 is limited. Even if the temperature of this part is higher, it cannot obtain sufficient heat exchange. After briefly obtaining a certain amount of heat, this part of the airflow continues to move towards the outlet end. Since the outlet end is no longer covered by the electromagnetic heater 5, the temperature here will not be higher than that of the middle position, nor will it be higher than the temperature of the airflow passing through this area. Therefore, the airflow will no longer be heated and will be discharged from the blower group at the original temperature in this state.

[0036] Based on the usage scenario described above, if we want to increase the temperature of the airflow blown out by the fan unit, the operation of the motor 12 and the transmission action of the gear set 11 will cause each double-headed screw 10 to rotate. This will cause each set of electromagnetic heaters 5 to move towards both ends of the ventilation duct 2 to a certain extent, within a certain range, and according to a certain motion pattern, and to be relatively evenly distributed in a certain section of the ventilation duct 2. This expands the middle area covered by heat, so the airflow entering the ventilation duct 2 has more opportunities to come into contact with the heating area and the contact time is longer. Even if the first half of the middle area does not have a high temperature, heat can be continuously replenished in the second half of the heating zone, resulting in more thorough heating and thus achieving a higher temperature.

[0037] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A fully electromagnetic hot air unit, comprising a casing (1), wherein a ventilation pipe (2) with open ends is connected inside the casing (1), and an intake fan (3) and an outlet pipe (4) connected to the ventilation pipe (2) are respectively installed at both ends of the casing (1), and an electromagnetic heater (5) for heating the airflow in the ventilation pipe (2) is installed on the outside of the ventilation pipe (2), characterized in that: The electromagnetic heater (5) is provided with multiple sets and is symmetrically distributed at both ends of the ventilation pipe (2). The housing (1) is equipped with a retraction mechanism that enables the electromagnetic heater (5) to move open and close uniformly on the ventilation pipe (2). When the medium flow rate in the ventilation pipe (2) remains constant, the total amount of heat received by the medium in the ventilation pipe (2) is controlled by changing the degree of concentration of the electromagnetic heater (5) on the ventilation pipe (2).

2. The all-electromagnetic hot air unit equipment according to claim 1, characterized in that: The retraction mechanism contains multiple sets of position adjustment components that correspond to each pair of electromagnetic heaters (5), and all the position adjustment components are connected to a transmission system.

3. The electromagnetic hot air unit equipment according to claim 2, characterized in that: The position adjustment assembly includes a double-ended screw (10) rotatably mounted on the chassis (1) below the ventilation pipe (2). Both ends of the double-ended screw (10) are threadedly connected with screw sleeves (9). A slide is connected between the screw sleeves (9) and the electromagnetic heater (5). A limiting assembly is connected inside the chassis (1) to prevent the electromagnetic heater (5) from rotating with the slide.

4. The electromagnetic hot air unit equipment according to claim 3, characterized in that: The limiting assembly includes multiple slide rails (8) installed inside the top of the chassis (1), and the two ends of the slide are connected upward to slide rods (7) that are slidably connected to the chassis (1) through the top observation slide rails (8).

5. The electromagnetic hot air unit equipment according to claim 3, characterized in that: The transmission system includes gears (11) mounted on each double-ended screw (10). A motor (12) is installed on the bottom side of the housing (1) and is mutually driven and cooperates with the bottom double-ended screw (10). A bracket (13) for mounting the suction fan (3) and the motor (12) is connected to one side of the housing (1). The double-ended screws (10) are evenly arranged in sequence below the ventilation pipe (2), and the gears (11) on two adjacent double-ended screws (10) are meshed with each other, and the threaded structure they carry extends in opposite directions.

6. The electromagnetic hot air unit equipment according to claim 1, characterized in that: The electromagnetic heater (5) group installed in the chassis (1) is arranged in a regular manner with the pitch of the thread structure on the matching double-headed screw (10) increasing from the center to the end of the ventilation pipe (2).

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