CN212202658U

CN212202658U - Nozzle with heating function and bladeless fan

Info

Publication number: CN212202658U
Application number: CN202020669744.3U
Authority: CN
Inventors: 应辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-27
Filing date: 2020-04-27
Publication date: 2020-12-22
Anticipated expiration: 2030-04-27

Abstract

The utility model relates to a nozzle and bladeless fan of area heating function. The nozzle includes an internal passage for receiving an air flow, the internal passage being provided with an air flow inlet and an air flow outlet; the inner channel is internally provided with an airflow separation part, the inside of the airflow separation part is hollow and is provided with a first airflow channel, and a heating device is arranged in the first airflow channel; the nozzle also comprises a first side wall and a second side wall, a second air flow channel is formed between the air flow separation part and the first side wall, and a third air flow channel is formed between the air flow separation part and the second side wall; one end of each of the second airflow channel and the third airflow channel is provided with an air inlet, the other end of each of the second airflow channel and the third airflow channel is sealed, and air flows respectively entering the second airflow channel and the third airflow channel from the air inlets are folded back to the inlet of the first airflow channel due to the blocking of the sealed ends when flowing to the respective sealed ends. The bladeless fan comprises a body and a nozzle as described above. The utility model has the advantages of high thermal efficiency, concentrated and uniform air flow injection, etc.

Description

Nozzle with heating function and bladeless fan

Technical Field

The utility model belongs to the technical field of the fan and specifically relates to a nozzle and bladeless fan of area heating function is related to.

Background

As is well known, the bladeless fan originally designed can blow only cold air (i.e., natural wind), but not hot air. To fill this gap, some bladeless fans that can produce heat are already on the market, such as: chinese invention patent CN201110225514.3, CN201110225536.x, CN201110225513.9, CN201120285286.4, CN201310138010.7 and chinese utility model CN201120285291.5, CN201120285534.5, CN201320201282.2 disclose a fan assembly, which is provided with three air flow channels in the internal channel of the nozzle, that is, the three air flow channels include a main air flow channel, a first secondary air flow channel located inside the main air flow channel and a second secondary air flow channel located outside the main air flow channel, a heating device is provided in the main air flow channel, during operation, the air flow received in the internal channel of the nozzle is divided into three paths, wherein the first path enters the main air flow channel and is heated by the heating device and then discharged from a first air flow discharge port at the front end of the main air flow channel, the second path enters the first secondary air flow channel and is discharged from a second air flow discharge port at the front end of the first secondary air flow channel, and the third path enters the second secondary air flow channel and merges from the front end of the second secondary air flow channel into the front end of the main air flow. Although the fan assembly can realize the heating function of the air flow passing through the main air flow channel through the heating device in the main air flow channel, and can also realize the heat insulation function of the air flow passing through the first secondary air flow channel and the second secondary air flow channel, the problem of low heat efficiency also exists, particularly, because the second air flow and the third air flow are still cold air flow or low-temperature air flow with low temperature after respectively passing through the first secondary air flow channel and the second secondary air flow channel, the two air flows are mixed with the first hot air flow heated by the heating device before being discharged or mixed with the first hot air flow after being discharged, the temperature of the first hot air flow can be reduced, so that the hot air sprayed to a human body can not reach the preset temperature, and the heat efficiency of the fan is influenced. In addition, three paths of air flows of the inner channel of the nozzle in the fan assembly are sprayed outwards through two discrete air flow discharge ports, so that the sprayed air flows are relatively dispersed and are not concentrated uniformly.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art not enough, provide a take heating function and thermal efficiency height, air jet to concentrate even nozzle and bladeless fan.

The purpose of the utility model is realized through the following technical scheme:

a nozzle with heating function, comprising at least one internal channel for receiving an air flow, said internal channel being provided with an air flow inlet and an air flow outlet corresponding thereto; the inner channel is internally provided with an airflow separation part, the inside of the airflow separation part is hollow and is provided with a first airflow channel, a heating device is arranged in the first airflow channel, the inlet of the first airflow channel is communicated with the inner channel, and the outlet of the first airflow channel is communicated with the airflow discharge port; the nozzle also comprises a first side wall and a second side wall which are used for limiting an internal channel and surround two sides of the airflow separation component, a second airflow channel which extends along the longitudinal direction of the airflow separation component is formed between the airflow separation component and the first side wall, and a third airflow channel which extends along the longitudinal direction of the airflow separation component is formed between the airflow separation component and the second side wall; the air inlets are arranged at the ends, close to the air inlet, of the second air flow channel and the third air flow channel, the ends, far away from the air inlet, of the second air flow channel and the third air flow channel are sealed, the second air flow channel and the third air flow channel are also communicated with the inlet of the first air flow channel respectively, and air flows entering the second air flow channel and the third air flow channel from the air inlets are turned back to the inlet of the first air flow channel due to blocking of the closed ends when flowing to the closed ends respectively.

Furthermore, the surface of the airflow separation component towards the first side wall is provided with a plurality of first supporting convex ribs abutted against the first side wall, the surface of the airflow separation component towards the second side wall is provided with a plurality of second supporting convex ribs abutted against the second side wall, and each first supporting convex rib and each second supporting convex rib are distributed along the longitudinal interval of the airflow separation component.

Furthermore, one side of each first supporting convex rib, which is far away from the inlet of the first air flow channel, is hollowed, so that the second air flow channel is formed between the surface, facing the first side wall, of the air flow separation part and the first side wall, and a first communication port for communicating the second air flow channel with the inlet of the first air flow channel is formed between every two adjacent first supporting convex ribs.

Furthermore, one side of each second supporting convex rib, which is far away from the inlet of the first air flow channel, is hollowed, so that a third air flow channel is formed between the surface, facing the second side wall, of the air flow separation part and the second side wall, and a second communication port for communicating the third air flow channel with the inlet of the first air flow channel is formed between every two adjacent second supporting convex ribs.

Further, the hollow part of the first supporting convex rib closest to the airflow inlet forms an air inlet of the second airflow channel, and the hollow part of the second supporting convex rib closest to the airflow inlet forms an air inlet of the third airflow channel.

Furthermore, a blocking component used for blocking one ends, far away from the airflow inlet, of the second airflow channel and the third airflow channel is further arranged in the inner channel.

Further, the heating device is a PTC heater longitudinally arranged along the hollow inner cavity of the airflow separation component.

Furthermore, the surfaces of two side walls of the hollow inner cavity of the airflow separation component, which face the PTC heater, are provided with third supporting convex ribs which are abutted against the corresponding wall surfaces of the PTC heater.

Further, the nozzle is the annular nozzle of U that the opening faces down, and it includes two vertical tip, all sets up the inside passage of a vertical extension in every vertical tip, and every inside passage all sets the air current entry that is located the bottom inboard of vertical tip and the air current discharge port that is located the preceding terminal surface of vertical tip.

A bladeless fan comprising a body and a nozzle as described above, the body comprising an air inlet, an air outlet and fan means disposed between the air inlet and the air outlet for generating an air flow through the body, the air outlet being connected to the air flow inlet of the nozzle.

Compared with the prior art, the utility model discloses following beneficial effect has:

first, the utility model discloses among the nozzle inner channel, the air current for the thermal-insulated cooling of second air current passageway and third air current passageway of flowing through, and not direct outside injection, but the import of turning back to first air current passageway under the blockking of passageway blind end separately, then mix before the heating with the main air current that flows in first air current passageway promptly, and after mixing together flow through heating device and heat the back outwards injection again, thereby can avoid among the prior art thermal-insulated cooling air current to main air current jet temperature's reduction influence when heating with it after main air current heats, thereby improve the thermal efficiency of nozzle and bladeless fan.

Secondly, the utility model discloses among the nozzle inner passage, the thermal-insulated for cooling air current that flows through second airflow channel and third airflow channel sprays through same air current discharge port after mixing into the air current with the primary air current, can improve the concentrated homogeneity when the air current sprays.

Drawings

Fig. 1 is a schematic front view of a nozzle with a heating function according to the present invention.

Fig. 2 is a schematic back view of the nozzle with heating function according to the present invention.

Fig. 3 is a schematic cross-sectional view of a-a in fig. 2.

Fig. 4 is an enlarged schematic view of one of the internal passages of fig. 3.

Fig. 5 is an exploded view of the nozzle with heating function according to the present invention.

Fig. 6 is a schematic structural view of the airflow separation member and the heating device according to the present invention.

Fig. 7 is a schematic cross-sectional view of a bladeless fan according to the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments shown in the drawings.

As shown in fig. 1 to 7, an embodiment of the present invention provides a nozzle with a heating function. The nozzle 1 comprises at least one internal channel 11 for receiving an air flow, the internal channel 11 being provided with an air flow inlet 12 and an air flow outlet 13 corresponding thereto. The inner channel 11 is provided with an airflow separation part 14, the inside of the airflow separation part 14 is hollow and is provided with a first airflow channel 141, a heating device 15 is arranged in the first airflow channel 141, an inlet 1411 of the first airflow channel 141 is communicated with the inner channel 11, and an outlet 1412 of the first airflow channel 141 is communicated with the airflow discharge port 13. The nozzle 1 further includes a first sidewall 11a and a second sidewall 11b for defining the internal passage 11 and surrounding both sides of the air flow dividing member 14, a second air flow passage 111 extending in a longitudinal direction of the air flow dividing member 14 is formed between the air flow dividing member 14 and the first sidewall 11a, and a third air flow passage 112 extending in a longitudinal direction of the air flow dividing member 14 is formed between the air flow dividing member 14 and the second sidewall 11 b. One

ends

111a and 112a of the second air flow channel 111 and the third air flow channel 112 close to the air flow inlet 12 are respectively provided with an

air inlet

1111 and 1121, one

ends

111b and 112b of the second air flow channel 111 and the third air flow channel 112 far away from the air flow inlet 12 are both closed, the second air flow channel 111 and the third air flow channel 112 are also respectively communicated with an inlet 1411 of the first air flow channel 141, and the air flows respectively entering the second air flow channel 111 and the third air flow channel 112 from the

air inlets

1111 and 1121 are folded back to the inlet 1411 of the first air flow channel 141 due to the blockage of the closed ends when flowing to the closed ends.

As described above, the internal passage 11 receives the air flow from the air flow inlet 12, and the air flow entering the internal passage 11 is divided into three by the dividing action of the air flow dividing member 14. Wherein: the first air flow is a main air flow, enters the first air flow channel 141, is heated by the heating device 15 and then is ejected outwards from the air flow outlet 13; the second air flow and the third air flow enter the second air flow channel 111 and the third air flow channel 112 respectively to play a role of heat insulation and cooling, so as to prevent heat generated when the heating device 15 heats the main air flow from being greatly conducted to the outer shell of the nozzle 1 through the air flow separation part 14, and further prevent discomfort or scald caused by touching of a human body, meanwhile, the second air flow entering the second air flow channel 111 and the third air flow entering the third air flow channel 112 are turned back to the inlet 1411 of the first air flow channel 141 under the blocking of the closed end of each channel, and then are mixed with the main air flow before heating, and flow through the heating device 15 together after being mixed to be heated and then are ejected outwards, thereby avoiding the influence of the heat insulation and cooling air flow on the reduction of the injection temperature of the main air flow when the main air flow is heated and mixed with the main air flow in the prior art, thereby improving the thermal efficiency of the nozzle. Meanwhile, the heat insulating and cooling air flow flowing through the second air flow channel 111 and the third air flow channel 112 is mixed with the main air flow to form a flow, and then the flow is ejected outwards through the same air flow outlet 13, so that the concentration uniformity during air flow ejection can be improved.

In this embodiment, the surface of the airflow dividing member 14 facing the first sidewall 11a is provided with a plurality of first supporting ribs 142 abutting against the first sidewall 11a, the surface of the airflow dividing member 14 facing the second sidewall 11b is provided with a plurality of second supporting ribs 143 abutting against the second sidewall 11b, and the first supporting ribs 142 and the second supporting ribs 143 are longitudinally spaced apart from each other along the airflow dividing member 14. In this structure, the first support rib 142 and the second support rib 143 can realize the installation and positioning of the airflow partition member 14 in the internal passage 11, and can reduce the contact area between the airflow partition member 14 and the first side wall 11a and the second side wall 11b, thereby further reducing the heat conduction generated during the operation of the heating device 15 in the airflow partition member 14 to the nozzle outer housing.

Further, a side of each first supporting rib 142 away from the inlet 1411 of the first air flow channel 141 is hollowed out, so that the second air flow channel 111 is formed between the surface of the air flow separation part 14 facing the first side wall 11a and the first side wall 11a, and a first communication opening 1420 for communicating the second air flow channel 111 with the inlet 1411 of the first air flow channel 141 is formed between two adjacent first supporting ribs 142. Meanwhile, the side of each second supporting rib 143 away from the inlet 1411 of the first air flow channel 141 is hollowed out, so that a third air flow channel 112 is formed between the surface of the air flow separation member 14 facing the second side wall 11b and the second side wall 11b, and a second communication port 1430 for communicating the third air flow channel 112 with the inlet 1411 of the first air flow channel 141 is formed between two adjacent second supporting ribs 143.

Further, the hollow portion of the first supporting rib 142 closest to the air inlet 12 forms the air inlet 1111 of the second air flow path 111, and the hollow portion of the second supporting rib 143 closest to the air inlet 12 forms the air inlet 1121 of the third air flow path 112.

Further, the inner passage 11 is provided therein with a blocking member 113 for blocking one ends of the second air flow passage 111 and the third air flow passage 112 away from the air flow inlet 12.

Preferably, the heating device 15 is a PTC heater disposed longitudinally along the hollow interior 140 of the air flow dividing member 14. Further, both side wall surfaces of the hollow cavity 140 of the airflow dividing member 14 facing the PTC heater are provided with third support ribs 144 which abut against the corresponding wall surfaces of the PTC heater. The third supporting ribs 144 can, on one hand, realize the installation and positioning of the PTC heater in the hollow cavity 140 of the airflow dividing member 14, and on the other hand, can also reduce the contact area between the PTC heater and the airflow dividing member 14, and reduce the heat conduction of the PTC heater during operation to the airflow dividing member 14.

In this embodiment, the nozzle 1 is a U-shaped annular nozzle with a downward opening, and includes two vertical end portions 1a, each vertical end portion 1a has an internal channel 11 formed therein and extending vertically, and each internal channel 11 is provided with an airflow inlet 12 located inside the bottom of the vertical end portion 1a and an airflow outlet 13 located on the front end surface of the vertical end portion 1 a.

As shown in fig. 5, the embodiment of the present invention provides a bladeless fan, comprising a body 2 and a nozzle 1 as described above, wherein the body 2 comprises an air inlet 21, an air outlet 22 and a fan device 23, the fan device 23 is arranged between the air inlet 21 and the air outlet 22 for generating an air flow through the body 2, and the air outlet 22 is connected to the air inlet 12 of the nozzle 1.

Further, the body 2 further includes a body housing 2a, the air inlet 21 is disposed on a peripheral wall of the body housing 2a, an impeller 231 and a motor 232 for driving the impeller 231 to rotate are disposed in the fan device 23, the air inlet end 23a of the fan device 23 is communicated with the air inlet 21 through an air inlet duct, and the air outlet end 23b of the fan device 23 is communicated with the air outlet 22 through an air outlet duct. In operation, the motor 232 drives the impeller 231 to rotate to generate an air flow through the body 2, which air flows through the air flow inlet 12 of the nozzle 1 into the internal passage 11 of the nozzle 1.

The above mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention can not be limited thereby, and all the simple equivalent changes and modifications made according to the claims and the description of the present invention are still included in the scope of the present invention.

Claims

1. A nozzle with heating function, comprising at least one internal channel for receiving an air flow, said internal channel being provided with an air flow inlet and an air flow outlet corresponding thereto; the method is characterized in that:

the inner channel is internally provided with an airflow separation part, the inside of the airflow separation part is hollow and is provided with a first airflow channel, a heating device is arranged in the first airflow channel, the inlet of the first airflow channel is communicated with the inner channel, and the outlet of the first airflow channel is communicated with the airflow discharge port;

the nozzle also comprises a first side wall and a second side wall which are used for limiting an internal channel and surround two sides of the airflow separation component, a second airflow channel which extends along the longitudinal direction of the airflow separation component is formed between the airflow separation component and the first side wall, and a third airflow channel which extends along the longitudinal direction of the airflow separation component is formed between the airflow separation component and the second side wall;

the air inlets are arranged at the ends, close to the air inlet, of the second air flow channel and the third air flow channel, the ends, far away from the air inlet, of the second air flow channel and the third air flow channel are sealed, the second air flow channel and the third air flow channel are also communicated with the inlet of the first air flow channel respectively, and air flows entering the second air flow channel and the third air flow channel from the air inlets are turned back to the inlet of the first air flow channel due to blocking of the closed ends when flowing to the closed ends respectively.

2. The nozzle with the heating function according to claim 1, wherein: the surface of the airflow separation component towards the first side wall is provided with a plurality of first supporting convex ribs abutted against the first side wall, the surface of the airflow separation component towards the second side wall is provided with a plurality of second supporting convex ribs abutted against the second side wall, and each first supporting convex rib and each second supporting convex rib are distributed along the longitudinal interval of the airflow separation component.

3. The nozzle with the heating function according to claim 2, wherein: one side of each first supporting convex rib, which is far away from the inlet of the first air flow channel, is hollowed, so that the second air flow channel is formed between the surface, facing the first side wall, of the air flow separation part and the first side wall, and a first communication port for communicating the second air flow channel with the inlet of the first air flow channel is formed between every two adjacent first supporting convex ribs.

4. The nozzle with the heating function according to claim 3, wherein: one side of each second supporting convex rib, which is far away from the inlet of the first air flow channel, is hollowed, so that a third air flow channel is formed between the surface, facing the second side wall, of the air flow separation part and the second side wall, and a second communication port for communicating the third air flow channel with the inlet of the first air flow channel is formed between every two adjacent second supporting convex ribs.

5. The nozzle with the heating function according to claim 4, wherein: the hollow part of the first supporting convex rib closest to the airflow inlet forms an air inlet of the second airflow channel, and the hollow part of the second supporting convex rib closest to the airflow inlet forms an air inlet of the third airflow channel.

6. A nozzle with a heating function according to claim 1, 2, 3, 4 or 5, characterized in that: and a blocking component used for blocking one ends of the second airflow channel and the third airflow channel far away from the airflow inlet is also arranged in the internal channel.

7. A nozzle with a heating function according to claim 1, 2, 3, 4 or 5, characterized in that: the heating device is a PTC heater longitudinally arranged along the hollow inner cavity of the airflow separation component.

8. The nozzle with the heating function according to claim 7, wherein: and the surfaces of two side walls of the hollow inner cavity of the airflow separation component, which face the PTC heater, are provided with third supporting convex ribs which are abutted with the corresponding wall surfaces of the PTC heater.

9. A nozzle with a heating function according to claim 1, 2, 3, 4 or 5, characterized in that: the nozzle is the annular nozzle of U that the opening faces down, and it includes two vertical tip, all sets up the inside passage of a vertical extension in every vertical tip, and every inside passage all sets the air current entry that is located the bottom inboard of vertical tip and the air current discharge port that is located the preceding terminal surface of vertical tip.

10. A bladeless fan, comprising: a nozzle as claimed in any one of claims 1 to 9 comprising a body and the nozzle, the body comprising an air inlet, an air outlet and fan means disposed between the air inlet and the air outlet for generating an air flow through the body, the air outlet being connected to the air flow inlet of the nozzle.