CN217876447U - Dual-purpose warm air blower - Google Patents

Abstract

The utility model relates to a dual-purpose heater, which includes a machine head. The machine head includes a casing, a fan blade assembly and a heating assembly in the casing, and the casing is provided with an air inlet and an air outlet opposite to the air inlet; The fan blade assembly includes a drive mechanism and a fan blade arranged on the power output shaft of the drive mechanism, and the fan blade is arranged between the air inlet and the air outlet; it is characterized in that: the fan blade includes a The first fan blade and the second fan blade arranged adjacent to the air outlet, the first fan blade and the second fan blade are arranged on the power output shaft of the same drive mechanism, and the heating component is arranged on the first fan blade and the second fan blade Between the two blades, the heating component has a gap for the wind sent by the first blade to flow in and the heated wind to flow out to the second blade. flow hole. The dual-purpose heater can realize the warm and cold exchange of the surroundings, so as to realize a more suitable temperature of the blown warm air and avoid the problem of overheating of the warm air.

Description

A dual-purpose heater

technical field

The utility model relates to the field of household appliances, in particular to a dual-purpose heater.

Background technique

At present, the fans on the market can only play the function of blowing, so they can only be used for blowing air in summer to enjoy the cool, while for winter, they need to use heaters for heating. In practical applications, both fans and heaters have their own use environments, and they have strong seasonality. This situation will cause great inconvenience to both storage and sales and home use, especially for home storage. Storing in a certain space not only wastes the floor area, but also causes inconvenience in use and maintenance, and the product utilization rate is low.

In order to solve the above-mentioned technical problems, as the Chinese utility model whose patent number is ZL201320578284.3 (authorization announcement number is CN203614433U) discloses a dual-purpose turning leaf fan for heating and cooling, the turning leaf fan is provided with heating components in front of the fan blades, Therefore, when the heating component is not working, cold air can be provided by the rotation of the fan blade. When the heating component is working, the heating component will heat the wind sent by the fan blade, so that the cooling and heating dual-purpose rotary fan can blow out warm air. However, since the heat-generating components are arranged in front of the fan blades in the fan, the heat-generating components will bring considerable resistance to the air supply, and the air supply distance and wind speed will be significantly reduced. Therefore, this method will affect the use of the fan. Effect. Need to do further improvement for this reason.

Utility model content

The technical problem to be solved by the utility model is to provide a dual-purpose heater capable of blowing out warm air and cold air without affecting the air supply and wind speed.

The technical scheme adopted by the utility model to solve the above-mentioned technical problems is: a dual-purpose heater, including a machine head, the machine head includes a casing and a fan blade assembly and a heating assembly in the casing, and the casing is provided with An air inlet and an air outlet opposite to the air inlet; the fan blade assembly includes a drive mechanism and a fan blade arranged on the power output shaft of the drive mechanism, and the fan blade is arranged between the air inlet and the air outlet;

It is characterized in that: the fan blades include a first fan blade arranged adjacent to the air inlet and a second fan blade arranged adjacent to the air outlet, and the first fan blade and the second fan blade are arranged on the power output shaft of the same drive mechanism Above, the heating component is arranged between the first fan blade and the second fan blade, and the heating component has a gap for the wind sent by the first fan blade to flow in and the heated wind to flow out to the second fan blade, so The housing is also provided with flow holes distributed around the second fan blades for gas communication between the second fan blades and the outside of the housing.

Further, the heating component is a PTC heating component having a plurality of heating elements arranged at intervals, the above-mentioned gap is formed between two adjacent heating elements, and the PTC heating component is arranged in the center of the housing for The inside of the casing is divided into a first chamber for installing the first fan blade and a second chamber for installing the second fan blade.

In order to realize synchronous operation of the first blade and the second blade, preferably, the driving mechanism is a driving motor provided in the first chamber or the second chamber, and the driving motor has a second blade connected to the first blade. An output shaft and a second output shaft connected with the second blade, the first output shaft and the second output shaft are arranged coaxially so that the first blade and the second blade rotate coaxially.

Further, the housing is formed by mating and connecting the front housing and the rear housing, and a connecting ring for transfer is also provided between the front housing and the rear housing.

In order to satisfy the installation of the drive motor and the PTC heating component, preferably, it also includes a mounting seat located in the housing, the mounting seat is fixed on the connecting ring, and the mounting seat has a first mounting part for the drive motor to install and The second installation part located on the other side of the first installation part is used for the installation of the PTC heating element.

In order to avoid mutual interference between the first fan blade and the second fan blade, the rear housing is in the shape of a cylinder open to one side, a first chamber is formed between the rear housing and the connecting ring, and the inlet The tuyere is opened on the wall surface of the rear casing opposite to the opening.

Further, the front casing is cylindrical and open to the rear casing, and a second chamber is formed between the front casing and the connecting ring.

In order to make the structure of the second chamber simpler, further, the front housing is a mesh cover, and the mesh cover includes:

A plurality of grids are distributed on the ring wall of the net cover at intervals, and the above-mentioned flow holes are formed between adjacent grids;

The fixed ring at least includes a first fixed ring and a second fixed ring arranged at intervals from the inside to the outside along the radial direction of the surface of the grille with the air outlet;

The flow guide strips at least include first flow guide strips located between the first fixed ring and the second fixed ring at intervals in the circumferential direction and radiating as a whole, and circumferentially spaced from the outer side of the second fixing ring outwards and radially distributed as a whole. The above-mentioned air outlet is formed between two adjacent first flow guide strips and two second flow guide strips.

In order to make the air supply farther, preferably, the second guide bar is bent outward from the second fixing ring.

In order to meet the user’s requirements for different wind outlet angles, preferably, it also includes a machine base located under the machine head, the base is provided with a U-shaped bracket with the notch facing upwards, and the arms on both sides of the bracket correspond to It is rotatably connected with both sides of the housing.

Compared with the prior art, the utility model has the advantage that: the first fan and the second fan driven by the same driving mechanism work at the same time, when warm air is needed, the wind sent by the first fan flows into the heating component It is heated and flows out into the second fan through the gap of the heating component, so that the exchange between the cold air entering the circulation hole and the warm air flowing out of the heating component can be realized, and finally fused and then sent out through the second fan blade. Therefore, in addition to blowing cold air and warm air, the dual-purpose heater can also realize the exchange of warm and cold around, so that the temperature of the warm air blown out is more suitable, and the problem of overheating of the warm air can be avoided.

Description of drawings

Fig. 1 is the structural representation of dual-purpose heater in the utility model embodiment;

Fig. 2 is a structural schematic diagram of another viewing angle of Fig. 1;

Fig. 3 is the sectional view of Fig. 1;

Figure 4 is an exploded view of Figure 1;

FIG. 5 is a partially exploded view of FIG. 1 .

Detailed ways

The utility model is described in further detail below in conjunction with the accompanying drawings.

As shown in Figures 1 to 5, the dual-purpose heater in this embodiment includes a machine head 2 and a machine base 1 located below the machine head 1. The machine base 1 is provided with a U-shaped bracket 10 with an upward notch. The arms on both sides of the bracket 10 are respectively connected to the two sides of the casing 21 for rotation, so that the handpiece 1 can be rotated to change the blowing direction of the handpiece 1 .

Wherein the machine head 2 includes a housing 21 and a fan blade assembly and a heating assembly in the housing 21, the housing 21 is provided with an air inlet 211 and an air outlet 212 opposite to the air inlet 211; the fan blade assembly includes a driving mechanism and a device. The fan blade on the power output shaft of the driving mechanism is arranged between the air inlet 211 and the air outlet 212; The blade 31 and the second fan blade 32 arranged adjacent to the air outlet 212, the first fan blade 31 and the second fan blade 32 are arranged on the power output shaft of the same drive mechanism, and the heating components are arranged on the first fan blade 31 and the second fan blade 31. Between the fan blades 32 , the heating component has a gap 41 for the wind sent by the first fan blade 31 to flow in and the heated wind to flow out to the second fan blade 32 . The flow hole 210 is used for gas flow between the second blade 32 and the outside of the casing 21 .

The above-mentioned heating component is a PTC heating component 4 with multiple heating elements arranged at intervals. The PTC heating component 4 is a prior art, and the specific structure can refer to a PTC heating component for a heater with a patent number of ZL 202121735097.2 The above-mentioned gap 41 is formed between two adjacent heating elements, and the PTC heating assembly 4 is arranged in the center of the housing 21, which is used to divide the interior of the housing 21 into the first chamber 21a for the installation of the first fan blade 31 And the second chamber 21b for the second blade 32 to be installed. In this way, the first fan blade 31 and the second fan blade 32 are spaced apart by the PTC heating component 4 to effectively prevent airflow interference between the first fan blade 31 and the second fan blade 32 .

In order to make the first fan blade 31 and the second fan blade 32 rotate coaxially, as shown in FIG. 5 has a first output shaft 51 connected to the first blade 31 and a second output shaft 52 connected to the second blade 32, and the first output shaft 51 and the second output shaft 52 are arranged coaxially.

The housing 21 of the dual-purpose heater is formed by the joint connection of the front housing 213 and the rear housing 214, and a connecting ring 215 for transfer is also provided between the front housing 213 and the rear housing 214. The control assembly 6 that can also be used to control the work of the dual-purpose heater on the 215 is installed, and the control assembly 6 can be a control button. Housing 21 is also provided with mounting base 216, mounting base 216 is fixed on the connecting ring 215, mounting base 216 has the first mounting portion 216a that is provided with for driving motor 5 and is positioned at the other side of this first mounting portion 216a. The second installation part for the PTC heating component 4 to be installed. In this way, the second output shaft 52 of the drive motor 5 can pass through the PTC heating component 4 and be connected to the second fan blade 32 .

In this embodiment, the rear housing 214 is cylindrical with one side open, the first chamber 21a is formed between the rear housing 214 and the connecting ring 215, and the air inlet 211 is set on the rear housing 214 opposite to the opening. on the wall. The front housing 213 is a cylinder open to the rear housing 214 , and a second chamber 21 b is formed between the front housing 213 and the connecting ring 215 . Of course, in order to facilitate the air intake of the second fan blade 32, the above-mentioned front housing 213 is a mesh cover, and the mesh cover includes a plurality of grids 2131, fixed rings and flow guide strips distributed on the ring wall of the mesh cover at intervals, adjacent to each other. The above-mentioned circulation holes 210 are formed between the grilles 2131, and the fixed ring at least includes a first fixed ring 2132 and a second fixed ring 2133 arranged at intervals from the inside to the outside along the radial direction of the surface of the grille with the air outlet 212; The bar at least includes a first guide bar 2134 located at a circumferential interval between the first fixing ring 2132 and a second fixing ring 2133 and is radial as a whole, and a circumferentially spaced distribution from the outer side of the second fixing ring 2133 and is generally radial. Radial second flow guide strips 2135, the above-mentioned air outlet 212 is formed between two adjacent first flow guide strips 2134 and two second flow guide strips 2135; 2133 is bent outward, so that the guiding effect is better and the wind can be directed further.

The working principle of the above-mentioned dual-purpose heater is as follows:

When warm air is needed, the drive motor 5 and the heating assembly are turned on so that the first blower fan 31 and the second blower fan 32 are rotated simultaneously. into the heating component to heat and flow out to the second chamber 21b through the gap 41 from the heating component. At this time, since the second chamber 21b also has a flow hole 210, that is, the flow hole 210 can also realize air intake, so that the second chamber In 21b, the cold air and warm air are exchanged and finally fused and sent out through the second fan blade 32, which can improve the surrounding warm and cold exchange;

When only cold wind is needed, the drive motor 5 is only turned on, and the heating assembly is not started. At this moment, the first blower fan 31 and the second blower blower 32 rotate simultaneously. The wind sent by the blower fan 31 flows into the heating component without heating and directly flows out to the second chamber 21b through the gap 41 from the heating component. At this time, since the second chamber 21b also has a flow hole 210, that is, the flow hole 210 can also be realized. In this way, the wind that flows into the second chamber 21b through the first chamber 21a and the flow hole 210 enters the wind and is finally sent out through the second fan blade 32, thus increasing the wind speed.

Claims (10)

1. A dual-purpose warm air blower comprises a machine head (2), wherein the machine head (2) comprises a shell (21) and a fan blade assembly and a heating assembly which are arranged in the shell (21), and an air inlet (211) and an air outlet (212) which is opposite to the air inlet (211) are formed in the shell (21); the fan blade assembly comprises a driving mechanism and a fan blade arranged on a power output shaft of the driving mechanism, and the fan blade is arranged between the air inlet (211) and the air outlet (212);

the method is characterized in that: the fan blades comprise a first fan blade (31) arranged close to the air inlet (211) and a second fan blade (32) arranged close to the air outlet (212), the first fan blade (31) and the second fan blade (32) are arranged on a power output shaft of the same driving mechanism, the heating assembly is arranged between the first fan blade (31) and the second fan blade (32), the heating assembly is provided with a gap (41) for allowing air sent out by the first fan blade (31) to flow in and allowing heated air to flow out to the second fan blade (32), and the shell (21) is further provided with circulation holes (210) distributed around the second fan blade (32) so that the second fan blade (32) and the shell (21) can be in air circulation.

2. The dual-purpose fan heater according to claim 1, wherein: the heating assembly is a PTC heating assembly (4) with a plurality of heating bodies arranged at intervals, a gap (41) is formed between every two adjacent heating bodies, and the PTC heating assembly (4) is arranged in the center of the shell (21) and used for dividing the interior of the shell (21) into a first cavity (21 a) for mounting the first fan blade (31) and a second cavity (21 b) for mounting the second fan blade (32).

3. The dual-purpose fan heater according to claim 2, wherein: the driving mechanism is a driving motor (5) arranged in the first cavity (21 a) or the second cavity (21 b), the driving motor (5) is provided with a first output shaft (51) connected with the first fan blade (31) and a second output shaft (52) connected with the second fan blade (32), and the first output shaft (51) and the second output shaft (52) are coaxially arranged so that the first fan blade (31) and the second fan blade (32) can coaxially rotate.

4. The dual-purpose fan heater of claim 3, wherein: the shell (21) is formed by oppositely connecting a front shell (213) and a rear shell (214), and a connecting ring (215) for matching is further arranged between the front shell (213) and the rear shell (214).

5. The dual-purpose fan heater according to claim 4, wherein: the PTC heating component is characterized by further comprising a mounting seat (216) arranged in the shell (21), wherein the mounting seat (216) is fixed on the connecting ring (215), and the mounting seat (216) is provided with a first mounting portion (216 a) for mounting the driving motor (5) and a second mounting portion located on the other side of the first mounting portion (216 a) and used for mounting the PTC heating component (4).

6. The dual-purpose fan heater according to claim 4, wherein: the rear shell (214) is in a cylindrical shape with an opening facing one side, a first cavity (21 a) is formed between the rear shell (214) and the connecting ring (215), and the air inlet (211) is formed in the wall surface of the rear shell (214) opposite to the opening.

7. The dual-purpose fan heater of claim 6, wherein: the front housing (213) is cylindrical with an opening toward the rear housing (214), and a second chamber (21 b) is formed between the front housing (213) and the connection ring (215).

8. The dual-purpose fan heater of claim 6, wherein: the front housing (213) is a mesh enclosure comprising:

a plurality of grilles (2131) which are distributed on the annular wall of the mesh enclosure at intervals, wherein the circulation holes (210) are formed between the adjacent grilles (2131);

the fixing ring at least comprises a first fixing ring (2132) and a second fixing ring (2133) which are sequentially arranged from inside to outside at intervals along the radial direction of the surface of the mesh enclosure, wherein the surface of the mesh enclosure is provided with an air outlet (212);

the flow guide strips at least comprise first flow guide strips (2134) which are circumferentially distributed at intervals between the first fixing ring (2132) and the second fixing ring (2133) and are integrally radial, and second flow guide strips (2135) which are circumferentially distributed at intervals outwards from the outer side of the second fixing ring (2133) and are integrally radial, and the air outlet (212) is formed between every two adjacent first flow guide strips (2134) and every two adjacent second flow guide strips (2135).

9. The dual-purpose fan heater of claim 8, wherein: the second flow guide strips (2135) are bent outwards from the second fixing ring (2133).

10. The dual-purpose fan heater according to any one of claims 1-9, wherein: still including locating frame (1) of aircraft nose (2) below, be equipped with on frame (1) and be U type and notch ascending support (10), the both sides arm of support (10) corresponds respectively and rotates with the both sides of casing (21) to be connected.

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