Warm air blower

Abstract

The utility model relates to the technical field of electrical equipment, and discloses a warm air blower which comprises a machine box, an air feeder is fixedly arranged on the inner wall of the bottom end of the machine box, the air inlet end of the air feeder is connected with a draught hood, a dust filtering assembly for filtering airflow is arranged in the draught hood, the air outlet end of the air feeder is connected with a heat conduction box, and the heat conduction box is connected with a fan. An electric heating plate is fixedly arranged on the surface of the heat conduction box, the surface of the heat conduction box is sleeved with a first heat insulation cover, and a plurality of baffle plates are fixedly arranged in the heat conduction box. The heat conduction box can be heated through the electric heating plate, heat preservation and heat insulation can be conducted on the heat conduction box through the first heat insulation cover, heat can be prevented from being transmitted to the machine box, and after the heat conduction box is heated, the heat can be transmitted to the baffle plates in the heat conduction box; the temperature of the baffle plate and the heat conduction box can be transferred to the air, so that the heating time of the air is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, specifically to a heater. Background Technology

[0002] A space heater is an electrical device based on the principle of electrothermal energy conversion. It mainly converts electrical energy into heat energy and then transfers the heat energy to the surrounding air to heat the air in the entire room. A space heater generally includes a heater and a fan that blows the heat generated by the heater out. When electrical energy is transferred to the heater, the heater heats up, and then the fan blows out the hot air, thereby heating the air in the entire room.

[0003] The "High-Power Heating Wire Heater" disclosed in application number "201920020542.3" includes a housing and a heating device disposed within the housing. The outer wall of the housing is provided with an air outlet mesh, and the interior of the housing is provided with an air duct. Multiple heating wires are fixedly connected to the inner wall of the air duct. The heating device includes a protective shell and a protective cover. The upper end face of the protective shell is fixedly connected to the lower end face of the protective cover. A screw hole is opened in the middle of the upper end face of the protective cover. A rotating shaft matching the screw hole is located in the middle of the upper end face of the protective cover. A rotating shaft is fixedly connected to the upper end face of the rotating shaft. Multiple fan blades are installed around the outer wall of the rotating shaft. By setting heating wires, the heating area of ​​the air duct is increased, making the heat more concentrated inside the air duct, making the heater hotter. The heating wire heater increases the power of the heating wires by increasing the number of coil heating wires.

[0004] However, the above method still has the following drawbacks: setting multiple heating wires can improve the heating effect, but the airflow does not come into direct contact with the heating wires, resulting in poor heating effect on the airflow, increased energy consumption, large heat loss, low working efficiency, and poor dust prevention, which can easily lead to dust entering. Utility Model Content

[0005] In view of the shortcomings of the prior art, this utility model provides a warm air heater with the advantages of good heating effect and low energy consumption, thus solving the problems mentioned in the background art.

[0006] This utility model provides the following technical solution: a warm air blower, including a casing, a blower fixedly installed on the inner wall of the bottom of the casing, an exhaust hood connected to the air inlet of the blower, a dust filter assembly for filtering the airflow inside the exhaust hood, a heat conduction box connected to the air outlet of the blower, an electric heating plate fixedly installed on the surface of the heat conduction box, a heat insulation cover fitted on the surface of the heat conduction box, several baffles fixedly installed inside the heat conduction box, a flexible hose fixedly connected to the air outlet of the heat conduction box, an air supply hood fixedly connected to the air outlet of the flexible hose, the air supply hood being rotatably connected to the interior of the casing, an air outlet opened on the surface of the air supply hood, and an adjustment assembly for adjusting the angle of the air supply hood on the top of one side of the casing.

[0007] As a preferred technical solution of this utility model, the dust filter assembly includes a support frame one and a support frame two. The support frame one is snapped into the bottom of one side of the chassis. A filter screen one is fixedly provided on the surface of the support frame one. A crossbar is fixedly provided on one side of the support frame one. One end of the crossbar is fixedly connected to one side of the support frame two. A filter screen two is fixedly provided on the surface of the support frame two.

[0008] As a preferred technical solution of this utility model, the second support frame is located inside the exhaust hood, and two card plates are fixedly provided on one side of the second support frame. The inner wall of the exhaust hood is provided with a card groove that engages with the card plates. The exhaust hood is fixedly connected to the inner wall of the bottom side of the chassis.

[0009] As a preferred embodiment of this utility model, the front of the chassis is connected to a panel, the top of the panel is fixedly provided with a dustproof net, the inside of the chassis is fixedly provided with two partitions, and the heat conduction box is fixedly installed between the two partitions.

[0010] As a preferred embodiment of this utility model, the bottom end of the blower is fixedly provided with an installation plate, the bottom end of the installation plate is fixedly connected to the inner wall of the bottom end of the casing by screws, the air inlet end of the blower is fixedly provided with an exhaust pipe, one end of the exhaust pipe is fixedly connected to an exhaust hood, the air outlet end of the blower is fixedly provided with an air supply pipe, the bottom end of the heat conduction box is provided with an input port fixedly connected to the air supply pipe, and the top end of the heat conduction box is provided with an output port fixedly connected to a flexible hose.

[0011] As a preferred embodiment of this utility model, the heat insulation cover one has an installation opening on its front side, the electric heating plate is located inside the installation opening, and the heat insulation cover two is fixedly installed on one side of the installation opening by screws.

[0012] As a preferred embodiment of this utility model, the adjustment component includes a protective box, one side of which is fixedly connected to the top of the casing. A worm gear is rotatably provided inside the protective box, and the worm gear is meshed with a worm wheel. Both ends of the air supply hood are fixedly provided with support shafts to support them, and the middle part of one side of the worm wheel is fixedly connected to one end of one of the support shafts.

[0013] As a preferred embodiment of this utility model, a knob is fixedly provided at one end of the worm gear, the knob is located outside the protective box, and a protective cover is fixedly connected to the other side of the protective box by screws.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The heat transfer box is heated by an electric heating plate, and the heat insulation cover keeps the heat transfer box warm and prevents heat from being transferred to the chassis. After the heat transfer box is heated, the temperature is transferred to the baffle plate inside. When the blower delivers airflow into the heat transfer box, the baffle plate guides the airflow. The temperature of the baffle plate and the heat transfer box can be transferred to the air, which prolongs the heating time of the air, resulting in high working efficiency, good heating effect, and reduced heat loss.

[0016] 2. When air is supplied through the exhaust hood, the dust filter component can filter dust, keeping the airflow clean. It is also easy to install and remove the dust filter component. The air supply angle of the exhaust hood can be adjusted by adjusting the component. The hose will not interfere with the movement of the exhaust hood. Attached Figure Description

[0017] Figure 1 This is one of the structural schematic diagrams of this utility model;

[0018] Figure 2 This is the second structural schematic diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the exploded structure of this utility model;

[0020] Figure 4 This is an enlarged structural diagram of point A in this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the dust filter assembly of this utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the heat conduction box of this utility model;

[0023] Figure 7 This is a schematic diagram of the internal structure of the heat conduction box of this utility model.

[0024] In the diagram: 1. Chassis; 2. Panel; 3. Dustproof screen; 4. Blower; 5. Exhaust hood; 6. Dust filter assembly; 601. Support frame one; 602. Filter screen one; 603. Crossbar; 604. Support frame two; 605. Filter screen two; 606. Mounting plate; 7. Slot; 8. Exhaust duct; 9. Air supply duct; 10. Mounting plate; 11. Heat conduction box; 12. Heat insulation cover one; 13. Electric heating plate; 14. Heat insulation cover two; 15. Baffle plate; 16. Inlet; 17. Outlet; 18. Adjustment assembly; 1801. Protective box; 1802. Worm gear; 1803. Worm wheel; 1804. Knob; 1805. Protective cover; 19. Flexible hose; 20. Air supply hood; 21. Air outlet; 22. Partition. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-7 A warm air heater includes a casing 1. A blower 4 is fixedly installed on the inner wall of the bottom of the casing 1. The air inlet of the blower 4 is connected to an exhaust hood 5. The exhaust hood 5 has a dust filter assembly 6 inside to filter the airflow. A heat conduction box 11 is connected to the air outlet of the blower 4. An electric heating plate 13 is fixedly installed on the surface of the heat conduction box 11. A heat insulation cover 12 is fitted over the surface of the heat conduction box 11. Several baffles 15 are fixedly installed inside the heat conduction box 11. The electric heating plate 13 can heat the heat conduction box 11, and the heat insulation cover 12 can keep the heat conduction box 11 warm. After being heated, the heat conduction box 11 can transfer the temperature to the baffles 15 inside. When the blower 4 delivers airflow into the heat conduction box 11, the baffle 15 can guide the airflow. The temperature of the baffle 15 and the heat conduction box 11 can be transferred to the air, which prolongs the heating time of the air, has high working efficiency, good heating effect, and reduces heat loss. The air outlet of the heat conduction box 11 is fixedly connected to a hose 19, and the air outlet of the hose 19 is fixedly connected to an air supply hood 20. The air supply hood 20 is rotatably connected to the inside of the casing 1. An air outlet 21 is opened on the surface of the air supply hood 20. An adjustment component 18 for adjusting the angle of the air supply hood 20 is provided on the top of one side of the casing 1. The air supply angle of the air supply hood 20 can be adjusted by adjusting the component 18.

[0027] In this embodiment, preferably, the dust filter assembly 6 includes a first support frame 601 and a second support frame 604. The first support frame 601 is snapped into the bottom of one side of the housing 1. A first filter screen 602 is fixedly mounted on the surface of the first support frame 601. A crossbar 603 is fixedly mounted on one side of the first support frame 601. One end of the crossbar 603 is fixedly connected to one side of the second support frame 604. A second filter screen 605 is fixedly mounted on the surface of the second support frame 604. The second support frame 604 is located inside the exhaust hood 5. Two clamping plates 606 are fixedly mounted on one side of the second support frame 604. The inner wall of the exhaust hood 5 has openings for clamping plates. The slot 7 of the plate 606 is engaged with the exhaust hood 5, which is fixedly connected to the inner wall of the bottom side of the chassis 1. By engaging the support frame 1 601 and the support frame 2 604 with the chassis 1 and the exhaust hood 5 respectively, it is easy to install and disassemble, and can ensure the stability of the installation. The support frame 1 601 and the support frame 2 604 can support the filter screen 1 602 and the filter screen 2 605 respectively. The filter screen 1 602 and the filter screen 2 605 can filter the dust in the airflow in two ways, which improves the dust prevention effect. By disassembling the support frame 1 601 and the support frame 2 604, it is easy to clean the filter screen 1 602 and the filter screen 2 605.

[0028] In this embodiment, preferably, the adjustment component 18 includes a protective box 1801. One side of the protective box 1801 is fixedly connected to the top of the casing 1. A worm gear 1802 is rotatably provided inside the protective box 1801. The worm gear 1802 is meshed with a worm wheel 1803. Both ends of the air supply hood 20 are fixedly provided with support shafts to support them. The middle part of one side of the worm wheel 1803 is fixedly connected to one end of one of the support shafts. A knob 1804 is fixedly provided at one end of the worm gear 1802. The knob 1804 is located outside the protective box 1801. The other side of the protective box 1801 is fixedly connected with a protective cover 1805 by screws. By rotating the worm gear 1802 by the knob 1804, the worm gear 1802 can drive the support shaft to rotate through the worm wheel 1803, thereby adjusting the air supply angle of the air supply hood 20. After adjustment, the worm gear 1802 and the worm wheel 1803 can achieve self-locking of the support shaft, which can maintain the stability of the air supply hood 20.

[0029] In this embodiment, preferably, the front of the chassis 1 is connected to a panel 2, the top of the panel 2 is fixedly provided with a dustproof net 3, the inside of the chassis 1 is fixedly provided with two partitions 22, the heat conduction box 11 is fixedly installed between the two partitions 22, the bottom of the blower 4 is fixedly provided with a mounting plate 10, the bottom of the mounting plate 10 is fixedly connected to the inner wall of the bottom of the chassis 1 by screws, the air inlet end of the blower 4 is fixedly provided with an exhaust pipe 8, one end of the exhaust pipe 8 is fixedly connected to the exhaust hood 5, the air outlet end of the blower 4 is fixedly provided with an air supply pipe 9, the bottom of the heat conduction box 11 is provided with an inlet port 16 fixedly connected to the air supply pipe 9, and the top of the heat conduction box 11 is provided with an outlet port 17 fixedly connected to the hose 19. The panel 2 can provide protection for the inside of the chassis 1, the dustproof net 3 can ensure the output of hot air and reduce the entry of dust, and the inlet port 16 and outlet port 17 can ensure the ventilation capacity of the heat conduction box 11.

[0030] In this embodiment, preferably, the front of the heat insulation cover 12 is provided with an installation port, and the electric heating plate 13 is located inside the installation port. The electric heating plate 13 can be installed through the installation port, and the electric heating plate 13 can be kept in close contact with the heat conduction box 11. A heat insulation cover 14 is fixedly installed on one side of the installation port by screws. The heat insulation cover 14 can prevent the temperature of the electric heating plate 13 from being transferred to the chassis 1 and the panel 2.

[0031] When in use, first push the second support frame 604 of the dust filter assembly 6 into the exhaust hood 5, then engage the card plate 606 with the slot 7 on the inner wall of the exhaust hood 5, and then engage the first support frame 601 with the bottom of the chassis 1 to install it, which can maintain the stability of the first filter screen 602 and the second filter screen 605.

[0032] When warm air needs to be delivered, the heat conduction box 11 is heated by the electric heating plate 13. The heat insulation cover 12 can keep the heat conduction box 11 warm and prevent heat from being transferred to the chassis 1. The heat insulation cover 14 can prevent the temperature of the electric heating plate 13 from being transferred to the chassis 1 and the panel 2. After the heat conduction box 11 is heated, it can transfer the temperature to the baffle plate 15 inside. Then, when the blower 4 delivers airflow into the heat conduction box 11, the baffle plate 15 can guide the airflow. The temperature of the baffle plate 15 and the heat conduction box 11 can be transferred to the air, extending the heating time of the air. Warm air can then be output through the blower cover 20.

[0033] During the operation of the blower 4, filter screen 602 and filter screen 605 can filter dust and keep the airflow clean. When it is necessary to adjust the air supply angle, the worm gear 1802 is rotated by the knob 1804 of the adjusting component 18. The worm gear 1802 drives the support shaft to rotate through the worm wheel 1803, thereby adjusting the air supply angle of the blower hood 20. The hose 19 can deform when the blower hood 20 moves without interfering with it. After adjustment, the worm gear 1802 and the worm wheel 1803 can achieve self-locking of the support shaft, which can maintain the stability of the blower hood 20. When it is necessary to clean filter screen 602 and filter screen 605, they can be removed from the exhaust hood 5 for cleaning.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heater, comprising a casing (1), characterized in that: A blower (4) is fixedly installed on the inner wall of the bottom of the chassis (1). The air inlet of the blower (4) is connected to an exhaust hood (5). The exhaust hood (5) is equipped with a dust filter assembly (6). The air outlet of the blower (4) is connected to a heat conduction box (11). An electric heating plate (13) is fixedly installed on the surface of the heat conduction box (11). A heat insulation cover (12) is fitted on the surface of the heat conduction box (11). Several baffles (15) are fixedly installed inside the heat conduction box (11). A hose (19) is fixedly connected to the air outlet of the heat conduction box (11). An air supply hood (20) is fixedly connected to the air outlet of the hose (19). The air supply hood (20) is rotatably connected to the inside of the chassis (1). An air supply port (21) is opened on the surface of the air supply hood (20). An adjustment assembly (18) is provided on the top of one side of the chassis (1).

2. The heater according to claim 1, characterized in that: The dust filter assembly (6) includes a first support frame (601) and a second support frame (604). The first support frame (601) is engaged with the bottom of one side of the chassis (1). A first filter screen (602) is fixedly provided on the surface of the first support frame (601). A crossbar (603) is fixedly provided on one side of the first support frame (601). One end of the crossbar (603) is fixedly connected to one side of the second support frame (604). A second filter screen (605) is fixedly provided on the surface of the second support frame (604).

3. The heater according to claim 2, characterized in that: The second support frame (604) is located inside the exhaust hood (5). Two clamping plates (606) are fixedly provided on one side of the second support frame (604). The inner wall of the exhaust hood (5) is provided with a slot (7) that engages with the clamping plates (606). The exhaust hood (5) is fixedly connected to the inner wall of the bottom side of the chassis (1).

4. The heater according to claim 1, characterized in that: The front of the chassis (1) is connected to a panel (2), and a dustproof net (3) is fixedly provided on the top of the panel (2). Two partitions (22) are fixedly provided inside the chassis (1), and the heat conduction box (11) is fixedly installed between the two partitions (22).

5. The heater according to claim 1, characterized in that: The bottom end of the blower (4) is fixedly provided with an installation plate (10), and the bottom end of the installation plate (10) is fixedly connected to the inner wall of the bottom end of the casing (1) by screws. The air inlet end of the blower (4) is fixedly provided with an exhaust pipe (8), and one end of the exhaust pipe (8) is fixedly connected to the exhaust hood (5). The air outlet end of the blower (4) is fixedly provided with an air supply pipe (9). The bottom end of the heat conduction box (11) is provided with an input port (16) fixedly connected to the air supply pipe (9), and the top end of the heat conduction box (11) is provided with an output port (17) fixedly connected to the hose (19).

6. The heater according to claim 1, characterized in that: The heat insulation cover one (12) has an installation opening on its front side, the electric heating plate (13) is located inside the installation opening, and the heat insulation cover two (14) is fixedly installed on one side of the installation opening by screws.

7. The heater according to claim 1, characterized in that: The adjustment assembly (18) includes a protective box (1801), one side of which is fixedly connected to the top of the casing (1). A worm gear (1802) is rotatably provided inside the protective box (1801), and a worm wheel (1803) is meshed with the worm gear (1802). Both ends of the air supply hood (20) are fixedly provided with support shafts to support it. The middle part of one side of the worm wheel (1803) is fixedly connected to one end of one of the support shafts.

8. The heater according to claim 7, characterized in that: A knob (1804) is fixedly provided at one end of the worm gear (1802). The knob (1804) is located outside the protective box (1801). A protective cover (1805) is fixedly connected to the other side of the protective box (1801) by screws.

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