Air duct type PTC heating device

Abstract

The utility model provides an integrated air duct type PTC heating device, and relates to the technical field of heaters, the integrated air duct type PTC heating device comprises a fan assembly and a heater, the fan assembly comprises a fan shell, the fan shell comprises an air blowing cavity and an air blowing channel, the air blowing cavity is internally provided with a fan rotating wheel, and the heater is arranged at the air blowing channel; the fan rotating wheel rotates to promote air to flow to generate wind, the wind passes through the heater when being blown out from the blowing channel, and heat energy generated by the heater is brought out by the wind. The beneficial effects of the utility model are that the fan assembly is arranged, wind energy generated by rotation of the fan rotating wheel is output through the blowing channel, and the heater is arranged at the blowing channel, so that heat of the heater can be rapidly brought out, and the heat generated by the heater can be fully utilized.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of heating device, especially a wind channel type PTC heating device. BACKGROUND

[0002] The PTC material can generate heat after being electrified, and its resistance increases rapidly with the increase of temperature, thereby realizing the purpose of automatic temperature control and constant temperature. The combination of the PTC heating device and the hair dryer can be applied to small warm air heaters, electric hair dryers, warm air heaters, drying machines, drying cabinets, drying machines, industrial drying equipment and the like, and the characteristics are large output hot air power, rapid heating, safety, automatic adjustment of air temperature and power consumption.

[0003] The technical content disclosed by the Chinese patent document (publication number: CN201499328U, patent name: heat-conducting aluminum pipe of PTC heating device and PTC heating device) is: the heat-conducting aluminum pipe is a cavity with open ends, and the upper surface and the lower surface are respectively provided with grooves, and the thickness of the aluminum pipe wall is 0mm-1.5mm; the PTC heating device comprises a heating core and a heat-dissipating aluminum strip; the heating core is formed by passing a ceramic PTC heating element, an insulating ceramic sheet, a conductive electrode and an insulating layer through the cavity of the heat-conducting aluminum pipe and being pressed; the heat-dissipating aluminum strip is pasted on the upper and lower surfaces of the heat-conducting aluminum pipe in the heating core. The utility model provides a heat-conducting aluminum pipe of PTC heating device with lower cost and more reasonable structure, and a PTC heating device with better heat conduction performance and more excellent insulation performance.

[0004] As can be known from the above embodiment, the heating device only has the function of generating heat and does not have the function of rapidly and directionally transmitting heat, so that the heat dissipation is slow and the heat dissipation range is small during use, and the heating device is not fully utilized. If the heating device is used in combination with the fan, the application of the heating device will be more extensive, and the heat generated by the heating device can be more fully utilized. Utility model content

[0005] The utility model overcomes the shortcoming in the prior art, sets up the fan assembly, the wind energy generated by the fan runner rotation is output through the blowing channel, the heating device is arranged at the blowing channel, so that the heat of the heating device can be rapidly taken out, and the heat generated by the heating device can be more fully utilized.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical schemes:

[0007] The integral wind channel type heating device comprises a fan assembly and a heating device, the fan assembly comprises a fan shell, the fan shell comprises a blowing cavity and a blowing channel, a fan runner is arranged in the blowing cavity, and the heating device is arranged at the blowing channel.

[0008] The fan runner rotates to promote air flow to generate wind, and the hot energy generated by the heating device is taken out by the wind when the wind blows out from the blowing channel.

[0009] Further, the fan housing is provided with an air inlet and an air outlet, and air enters from the air inlet and is output from the air outlet.

[0010] The air outlet is provided with a support positioning strip, and the heating device is attached to the support positioning strip.

[0011] Further, the fan runner includes a runner body provided with a connecting boss, one side of the connecting boss is provided with a cavity, and a motor is arranged in the cavity to drive the fan runner to rotate.

[0012] Further, the boss away from the cavity is provided with a connecting shaft;

[0013] The runner body is also provided with a blade clamping hole, the blade clamping hole is connected with an arc-shaped blade, and the other end of the arc-shaped blade is connected with an upper ring.

[0014] Further, the heating device includes a heating strip connected with a heat sink, a flow gap is arranged between every two heat sinks, and the wind generated by the fan runner flows out through the flow gap.

[0015] Further, the heat sink includes a main plate body, and the main plate body is connected with a spacing folding piece at both ends.

[0016] An included angle is formed between the main plate body and the spacing folding piece, and one end of the spacing folding piece away from the main plate body abuts against another heat sink.

[0017] Further, two side plates are arranged at both sides of the heating device, and the heat sink is arranged between the two side plates.

[0018] The side plate is provided with a first bending part and a second bending part, the first bending part and the second bending part form an included angle of ninety degrees, the first bending part abuts against the support positioning strip during installation, and the second bending part is connected with the side wall of the blowing channel.

[0019] Further, the side plate is connected with a side sleeve.

[0020] Both ends of the heating strip are inserted into the side sleeve, and the side sleeve includes a first sleeve body and a second sleeve body.

[0021] The size of the first sleeve body is larger than that of the second sleeve body.

[0022] The second sleeve body is inserted into the connecting side plate, and the first sleeve body is located at one side of the connecting side plate close to the heat sink.

[0023] Compared with the prior art, the beneficial effects of the utility model are that;

[0024] 1、The fan assembly is arranged, the wind energy generated by the rotation of the fan wheel is output through the blowing channel, and the heater is arranged at the blowing channel, so that the heat of the heater can be quickly taken out, and the heat generated by the heater can be more fully utilized.

[0025] 2、The rotor body is provided with a cavity, and the motor can be installed at the cavity, so that the motor can be installed inside the fan shell, the entire heating device is integrated, and the structure of the heating device is more stable. BRIEF DESCRIPTION OF DRAWINGS

[0026] The accompanying drawings are used to provide a further understanding of the present application, and are used to explain the present application together with the embodiments of the present application, and do not constitute a limitation on the present application, and in the drawings:

[0027] Figure 1 It is a general schematic view of the heating device of the present application;

[0028] Figure 2 It is a side perspective view of the heating device of the present application;

[0029] Figure 3 It is an exploded schematic view of the heating device of the present application;

[0030] Figure 4 It is an exploded schematic view of the fan wheel of the present application;

[0031] Figure 5 It is a schematic view of the structure of the heater of the present application;

[0032] Figure 6 It is an exploded schematic view of the heater of the present application.

[0033] In the drawings: 1, fan shell; 1A, air blowing cavity; 1B, blowing channel; 101, air inlet; 102, air outlet; 103, support positioning strip; 2, fan wheel; 201, rotor body; 2011, connecting boss; 2012, connecting shaft center; 2013, blade clamping hole; 202, upper wheel ring; 203, arc-shaped blade; 3, heater; 301, heating strip; 302, heat dissipation fin; 3021, main fin body; 3022, spacing folding piece; 303, side sleeve; 3031, first sleeve body; 3032, second sleeve body; 304, side plate; 3041, first bending part; 3042, second bending part. DETAILED DESCRIPTION

[0034] The preferred embodiments of the present application are described below in conjunction with the drawings, and it should be understood that the preferred embodiments described herein are only used to illustrate and explain the present application, and do not limit the present application.

[0035] AsFigures 1 to 6 As shown, a kind of air duct type PTC heating device, including fan assembly and heater 3, fan assembly includes fan housing 1, fan housing 1 includes air-blowing cavity 1A and blowing channel 1B, fan wheel 2 is arranged inside air-blowing cavity 1A, heater 3 is arranged at blowing channel 1B;Fan wheel 2 rotates, air flow is generated to produce wind, when wind blows out from blowing channel 1B, the heat energy generated by heater 3 is taken out by wind, so that the heat of heater 3 can be quickly taken out, so that the heat generated by heater 3 can be more fully utilized.

[0036] Fan housing 1 is provided with air inlet 101 and air outlet 102, air enters from air inlet 101 and then is output from air outlet 102;Air outlet 102 is provided with support positioning strip 103, heater 3 is abutted on support positioning strip 103, two side plates 304 are provided on the two sides of heater 3, first bending part 3041 and second bending part 3042 are provided on side plate 304, first bending part 3041 and second bending part 3042 form a ninety-degree angle, first bending part 3041 abuts against support positioning strip 103 during installation, second bending part 3042 is connected with the side wall of blowing channel 1B, support positioning strip 103 enables the installer to quickly position and install heater 3 when installing heater 3 in fan housing 1, so that the positions of the heaters 3 of each heating device are the same, so that the effects of the batch-produced heaters are consistent, and the stability of the use of the heater is improved.

[0037] Fan wheel 2 includes runner frame body 201, runner frame body 201 is provided with connecting boss 2011, one side of connecting boss 2011 is provided with cavity, motor is arranged at the cavity, motor drives fan wheel 2 to rotate, so that motor can be installed in fan housing 1, so that the whole heating device is integrated, so that the structure of the heating device is more stable.

[0038] The side of connecting boss 2011 away from the cavity is provided with connecting shaft center 2012;Motor shaft can be inserted into connecting shaft center 2012, connecting shaft center 2012 lengthens the contact surface of motor shaft and runner frame body 201, so that the connection is more stable.

[0039] Runner frame body 201 is also provided with blade clamping hole 2013, blade clamping hole 2013 connects arc-shaped blade 203, the other end of arc-shaped blade 203 connects upper wheel ring 202, arc-shaped blade 203 has a certain arc compared with traditional straight fan blade, so that the effect of stirring air around the arc-shaped blade 203 when rotating is better, so that more air can be stirred to form air flow.

[0040] The heat generator 3 comprises a heat generating strip 301, the heat generating strip 301 is connected with radiating fins 302, flow gaps are arranged between every two radiating fins 302, air generated by the fan wheel 2 flows out through the flow gaps, the radiating fin 302 comprises a main fin body 3021, interval flaps 3022 are connected at both ends of the main fin body 3021, an angle is formed between the main fin body 3021 and the interval flaps 3022, one end of the interval flaps 3022 away from the main fin body 3021 abuts against another radiating fin 302, the interval flaps 3022 make every two radiating fins 302 contact together, thus the connection between the radiating fins 302 is more stable, the interval flaps 3022 make the radiating gaps between every two radiating fins 302, thus air can flow through the radiating gaps to take away the heat generated by the radiating fins 302.

[0041] Two side plates 304 are arranged at both sides of the heat generator 3, the radiating fins 302 are arranged between the two side plates 304, the side plates 304 are connected with the edge sleeve 303, both ends of the heat generating strip 301 are inserted with the edge sleeve 303, the edge sleeve 303 comprises a first sleeve body 3031 and a second sleeve body 3032; the size of the first sleeve body 3031 is larger than the size of the second sleeve body 3032; the second sleeve body 3032 is inserted with the side plate 304, the first sleeve body 3031 is arranged at the side of the side plate 304 close to the radiating fin 302, thus the edge sleeve 303 connects the side plate 304 with the heat generating strip 301, the connection between the side plate 304, the heat generating strip 301 and the radiating fin 302 is more stable.

[0042] Finally, it should be noted that: the above is only the preferred embodiment of the present application, and is not intended to limit the present application, although the present application is described in detail with reference to the embodiments, for those skilled in the art, the technical solutions recorded in the above embodiments can be modified, or some technical features can be replaced, but any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A duct-type PTC heating device, characterized in that, It includes a fan assembly and a heater (3). The fan assembly includes a fan housing (1). The fan housing (1) includes a blower cavity (1A) and a blower channel (1B). A fan impeller (2) is provided inside the blower cavity (1A). The heater (3) is located at the blower channel (1B). The fan rotor (2) rotates, causing air to flow and generate wind. When the wind blows out from the air blowing channel (1B), it passes through the heater (3), and the heat energy generated by the heater (3) is carried out by the wind. The fan housing (1) is provided with an air inlet (101) and an air outlet (102). Air enters from the air inlet (101) and exits from the air outlet (102). A support positioning strip (103) is provided at the air outlet (102), and the heater (3) is attached to the support positioning strip (103); The fan rotor (2) includes a rotor frame (201), the rotor frame (201) is provided with a connecting boss (2011), a cavity is provided on one side of the connecting boss (2011), a motor is provided in the cavity, and the motor drives the fan rotor (2) to rotate; A connecting shaft (2012) is provided on the side of the boss (2011) away from the cavity. The wheel frame (201) is also provided with a blade retaining hole (2013), which connects to an arc blade (203), and the other end of the arc blade (203) is connected to an upper wheel ring (202).

2. The air duct type PTC heating device according to claim 1, characterized in that, The heater (3) includes a heating strip (301), which is connected to a heat sink (302). A flow gap is provided between every two heat sinks (302), and the air generated by the fan wheel (2) flows out through the flow gap.

3. The air duct type PTC heating device according to claim 2, characterized in that, The heat sink (302) includes a main body (3021), and the two ends of the main body (3021) are connected to the spacing flaps (3022). The main plate (3021) and the spacing flap (3022) form an angle, and the end of the spacing flap (3022) away from the main plate (3021) abuts against another heat sink (302).

4. The air duct type PTC heating device according to claim 3, characterized in that, The heater (3) has two side plates (304) on both sides, and the heat sink (302) is disposed between the two side plates (304); The side plate (304) is provided with a first bend (3041) and a second bend (3042). The first bend (3041) and the second bend (3042) form a 90-degree angle. During installation, the first bend (3041) abuts against the support positioning strip (103), and the second bend (3042) is connected to the side wall of the air blowing channel (1B).

5. A duct-type PTC heating device according to claim 4, characterized in that, The side plate (304) is connected to the side sleeve (303); The two ends of the heating strip (301) are inserted into the side sleeve (303), and the side sleeve (303) includes a first sleeve body (3031) and a second sleeve body (3032). The size of the first set (3031) is larger than the size of the second set (3032); The second body (3032) is inserted into the side plate (304), and the first body (3031) is located on the side of the side plate (304) near the heat sink (302).

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