CN212233494U - Air duct shell and electric hair drier - Google Patents
Air duct shell and electric hair drier Download PDFInfo
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- CN212233494U CN212233494U CN202021590414.1U CN202021590414U CN212233494U CN 212233494 U CN212233494 U CN 212233494U CN 202021590414 U CN202021590414 U CN 202021590414U CN 212233494 U CN212233494 U CN 212233494U
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Abstract
The utility model relates to an air duct shell, which is provided with an air inlet and an air outlet, and the wall of the air duct shell is provided with a mounting port which is positioned between the air inlet and the air outlet; the air duct shell is connected with an electric control assembly, the electric control assembly comprises a circuit board and a plurality of electronic elements connected to the circuit board, and the circuit board covers the mounting opening and is connected with the air duct shell. The utility model has the advantages that: the electric control assembly dissipates heat quickly, and the heat dissipated by the electric control assembly can heat the air flowing through the air duct shell, so that the utilization rate of the heat is improved.
Description
Technical Field
The utility model belongs to the technical field of domestic appliance and specifically relates to a wind channel shell and hairdryer are related to.
Background
The hair drier (also called hair drier) is mainly used for drying and shaping hair, but also can be used for local drying, heating and physical therapy in laboratories, physical therapy rooms, industrial production, art designing and other aspects. Although the types of hair dryers are various, the hair dryers have different structures, and are all composed of a shell, a handle, a motor, fan blades, an electric heating element, a wind shield, a switch, an electric control assembly, a power line and the like. The electric control assembly is used for adjusting the voltage connected by the power line to the rated voltage of the motor, and meanwhile, the electric control assembly can control the starting, stopping and rotating speed of the motor by matching with the switch. Because the electric control component has a large number of electronic elements, the electric control component can generate a large amount of heat when the electric hair drier works; however, the hair dryer in the market does not perform well in the aspect of heat dissipation of the electric control assembly, when the hair dryer works for a long time, the performance of some electronic components in the electric control assembly is reduced quickly, and some electronic components are burnt out in serious cases.
SUMMERY OF THE UTILITY MODEL
To the not enough of prior art existence, one of the purposes of the utility model is to provide an air duct shell, its advantage: the electric control assembly dissipates heat quickly.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: an air duct shell is provided with an air inlet and an air outlet, the wall of the air duct shell is provided with a mounting opening, and the mounting opening is positioned between the air inlet and the air outlet; the air duct shell is connected with an electric control assembly, the electric control assembly comprises a circuit board and a plurality of electronic elements connected to the circuit board, and the circuit board covers the mounting opening and is connected with the air duct shell.
Through above-mentioned technical scheme, install the electric control subassembly between air intake and the air outlet for the air of wind channel shell of flowing through can take away the heat that the electric control subassembly sent, thereby help the electric control subassembly heat dissipation, improved the radiating rate of electric control subassembly, the heat that the electric control subassembly distributes moreover also can heat the air, has improved thermal utilization ratio. The electric control assembly is used as one part of the wall of the air duct shell, so that the adverse effect of the electric control assembly on the flow speed of air in the air duct shell can be greatly reduced.
The utility model discloses further set up to: the electronic elements are distributed on two sides of the circuit board, and the power of the electronic elements positioned on one side of the circuit board facing the inside of the air duct shell is larger than that of the electronic elements positioned on one side of the circuit board facing the outside of the air duct shell.
Through above-mentioned technical scheme, can be better dispel the heat to electric control assembly.
The utility model discloses further set up to: the air duct shell comprises a cross air section and a longitudinal air section; one end of the cross wind section is an air outlet, and the other end of the cross wind section is a mounting port; one end of the longitudinal wind section is an air inlet, and the other end of the longitudinal wind section is connected and communicated with the position, close to the mounting opening, of the peripheral side wall of the transverse wind section.
Through the technical scheme, the electronic control element can be helped to better radiate, and the radiating efficiency of the electronic control element is accelerated.
The utility model discloses further set up to: the circuit board inclines towards an inner corner at the joint of the crosswind section and the vertical wind section, and when the vertical wind section is in a vertical posture, the projections of the circuit board and the vertical wind section on a horizontal plane have an overlapped part.
Through the technical scheme, the air entering the crosswind section from a part of the longitudinal wind section can directly blow the electric control element, so that the electric control element can be helped to radiate better, and the radiating efficiency of the electric control element is accelerated.
The utility model discloses further set up to: the cross wind section comprises an expanding part and a necking part which are sequentially arranged from the mounting opening to the air outlet direction, the expanding part is gradually enlarged from the mounting opening to the air outlet direction caliber, and the necking part is gradually reduced from the mounting opening to the air outlet direction caliber.
Through the technical scheme, enough space for installing the heating device is ensured in the cross wind section, and the caliber of the necking part is gradually reduced from the installation opening to the air outlet, so that the air blown out from the air outlet has larger wind speed; the flaring portion is gradually enlarged from the mounting opening to the air outlet, so that air can smoothly pass through the flaring portion when entering the cross air portion through the longitudinal air portion, the air is not easy to rebound, and the influence of rebound air on the advancing air is reduced.
The utility model discloses further set up to: be equipped with the piece of keeping out the wind near air outlet department in the throat portion, keep out the wind and leave the air-out clearance between piece edge and the throat portion inner wall, it is connected with the splice bar to keep out the wind between piece and the throat portion.
Through above-mentioned technical scheme, keep out the wind piece and the setting in air-out clearance for the air-out cross sectional area of air outlet can be littleer, thereby makes the wind speed obtain further promotion, and the wind speed of the wind of following the air outlet outflow this moment can be bigger.
The utility model discloses further set up to: the flaring part and the necking part are arranged in a split manner;
the longitudinal wind section comprises a first half shell integrally formed with the flaring portion and a second half shell integrally formed with the necking portion;
the flaring portion is buckled with the necking portion, and the first half shell is buckled with the second half shell.
Through the technical scheme, the air duct shell is convenient to form in manufacturing.
The utility model discloses further set up to: the circuit board is connected with the air duct shell through screws.
Through above-mentioned technical scheme, the installation and the dismantlement of circuit board of being convenient for.
Another object of the utility model is to provide a hairdryer, including above-mentioned wind channel shell.
To sum up, the utility model discloses a following at least one useful technological effect:
1. the electric control assembly is arranged between the air inlet and the air outlet, so that the air flowing through the air duct shell can take away the heat emitted by the electric control assembly, the heat dissipation of the electric control assembly is facilitated, the heat dissipation speed of the electric control assembly is improved, the air can be heated by the heat emitted by the electric control assembly, and the utilization rate of the heat is improved;
2. the electric control assembly is used as a part of the wall of the air duct shell, so that the adverse effect of the electric control assembly on the flow velocity of air in the air duct shell can be greatly reduced;
3. the circuit board inclines towards an inner corner at the joint of the crosswind section and the longitudinal wind section, and when the longitudinal wind section is in a vertical posture, the projections of the circuit board and the longitudinal wind section on a horizontal plane have an overlapped part; the air entering the crosswind section from a part of the longitudinal wind section can directly blow the electric control element, so that the electric control element can be better radiated, and the radiating efficiency of the electric control element is accelerated.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is an exploded view of the present invention;
fig. 3 is another exploded view of the present invention.
In the figure, 1, crosswind section; 11. a flared part; 12. a necking part; 13. a wind shielding member; 14. connecting ribs; 15. an air outlet; 16. an installation port; 2. a longitudinal wind section; 21. a first half shell; 22. a second half shell; 23. an air inlet; 3. an electrical control assembly; 31. a circuit board; 32. an electronic component.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows:
referring to fig. 1, the air duct casing disclosed by the present invention comprises a crosswind section 1, wherein one end of the crosswind section 1 is provided with an air outlet 15, and the other end is provided with a mounting port 16; an electric control assembly 3 is arranged at one end of the crosswind section 1, which is provided with a mounting opening 16; the side wall of the cross wind section 1 is connected and communicated with the longitudinal wind section 2 near the mounting port 16, and one end of the longitudinal wind section 2 far away from the cross wind section 1 is provided with an air inlet 23.
Referring to fig. 2 and 3, the cross air section 1 includes an expansion portion 11 and a contraction portion 12 sequentially arranged from the installation opening 16 to the air outlet 15, the expansion portion 11 and the contraction portion 12 are separately arranged and fastened with each other, the expansion portion 11 and the contraction portion 12 can be connected by means of screw connection, bonding, welding, clamping, and the like, and in this embodiment, the expansion portion 11 and the contraction portion 12 are connected by means of screw connection. It is noted that the caliber of the flared portion 11 gradually enlarges from the mounting opening 16 to the air outlet 15, and the caliber of the reduced portion 12 gradually reduces from the mounting opening 16 to the air outlet 15; the mounting opening 16 is inclined with its upper edge closer to the throat portion 12 than its lower edge. A wind shielding piece 13 is arranged in the throat part 12 and close to the air outlet 15, an air outlet gap is reserved between the edge of the wind shielding piece 13 and the inner wall of the throat part 12, and a connecting rib 14 is integrally formed between the wind shielding piece 13 and the throat part 12.
The vertical wind section 2 is connected at the transition position of the flared part 11 and the throat part 12, and comprises a first half shell 21 and a second half shell 22, wherein the first half shell 21 and the second half shell 21 are integrally formed with the flared part 11, the first half shell 21 is longer than the second half shell 22, and the first half shell 21 and the second half shell 22 are buckled to form a hollow cylindrical body. The first half shell 21 and the second half shell 22 can be connected by means of screw connection, bonding, welding, clamping and the like, and in the embodiment, the first half shell 21 and the second half shell 22 are connected in a clamping manner; specific speaking, equal integrated into one piece has the trip on two long edges of first half shell 21, correspond the position of trip on two inboard edges of second half shell 22 and offer the collude groove with the trip adaptation, collude groove notch department shrink, when first half shell 21 was mutually with second half shell 22, the trip inserted in the collude groove and colluded the shrink department of colluding the groove notch for first half shell 21 is together fixed with second half shell 22.
Referring to fig. 2 and 3, the electric control assembly 3 includes a circuit board 31 and a plurality of electronic components 32 connected to both sides of the circuit board 31, the circuit board 31 covers the outer side of the mounting opening 16 and is screwed with the crosswind section 1, and the power of the electronic components 32 located on the side of the circuit board 31 facing the inside of the wind tunnel casing is greater than the power of the electronic components 32 located on the side of the circuit board 31 facing the outside of the wind tunnel casing. It should be noted that the circuit board 31 is inclined toward the inner corner where the crosswind section 1 and the downwind section 2 are connected, and when the downwind section 2 is in the vertical position, the projections of the circuit board 31 and the downwind section 2 on a horizontal plane overlap.
The implementation principle of the embodiment is as follows: after air enters the longitudinal wind section 2 through the air inlet 23, the air flows to the transverse wind section 1 along the longitudinal wind section 2; when air enters the crosswind section 1, a part of air directly blows electric control elements and exchanges heat with the electric control elements, and turns under the action of the circuit board 31, and the other part of air turns under the action of the flared part 11; after the air flows into the necking part 12, the flow speed of the air is gradually increased due to the gradual reduction of the caliber; when the air flows to the wind screen 13, the wind speed is further raised, and finally the air flows out from the wind outlet 15.
Example two:
the embodiment discloses a hair drier which comprises an air duct shell disclosed in the first embodiment.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (9)
1. The utility model provides an air duct shell, be equipped with air intake (23) and air outlet (15) on the air duct shell, characterized by: the wall of the air duct shell is provided with a mounting opening (16), and the mounting opening (16) is positioned between the air inlet (23) and the air outlet (15); an electric control assembly (3) is connected to the air duct shell, the electric control assembly (3) comprises a circuit board (31) and a plurality of electronic elements (32) connected to the circuit board (31), and the circuit board (31) covers the mounting opening (16) and is connected with the air duct shell.
2. The air duct shell according to claim 1, wherein: the electronic elements (32) are distributed on two sides of the circuit board (31), and the power of the electronic elements (32) located on one side, facing the inside of the air duct shell, of the circuit board (31) is larger than that of the electronic elements (32) located on one side, facing the outside of the air duct shell, of the circuit board (31).
3. The air duct shell according to claim 1, wherein: the air duct shell comprises a cross wind section (1) and a longitudinal wind section (2); one end of the crosswind section (1) is provided with an air outlet (15), and the other end is provided with a mounting hole (16); one end of the longitudinal wind section (2) is an air inlet (23), and the other end of the longitudinal wind section is connected and communicated with the peripheral side wall of the transverse wind section (1) close to the mounting opening (16).
4. The duct casing of claim 3, wherein: the circuit board (31) inclines towards an inner corner at the joint of the crosswind section (1) and the longitudinal wind section (2), and when the longitudinal wind section (2) is in a vertical posture, the projections of the circuit board (31) and the longitudinal wind section (2) on a horizontal plane have an overlapped part.
5. The duct casing of claim 3, wherein: crosswind section (1) includes flaring portion (11) and throat portion (12) that set gradually by installing port (16) to air outlet (15) direction, flaring portion (11) is by installing port (16) to air outlet (15) direction bore and enlarges gradually, throat portion (12) is by installing port (16) to air outlet (15) direction bore and reduces gradually.
6. The duct casing of claim 5, wherein: be equipped with in throat portion (12) near air outlet (15) and keep out wind spare (13), keep out wind spare (13) edge and leave the air-out clearance between throat portion (12) inner wall, it is connected with between wind spare (13) and the throat portion (12) and connects muscle (14).
7. The duct casing of claim 5, wherein: the flaring part (11) and the necking part (12) are arranged in a split manner;
the longitudinal wind section (2) comprises a first half shell (21) and a second half shell (22), wherein the first half shell (21) and the flaring portion (11) are integrally formed;
flaring portion (11) with throat portion (12) lock, first half shell (21) with second half shell (22) lock.
8. The air duct shell according to claim 2, wherein: the circuit board (31) is connected with the air duct shell through screws.
9. An electric hair drier is characterized in that: comprising the air duct shell according to any of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021590414.1U CN212233494U (en) | 2020-07-31 | 2020-07-31 | Air duct shell and electric hair drier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021590414.1U CN212233494U (en) | 2020-07-31 | 2020-07-31 | Air duct shell and electric hair drier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212233494U true CN212233494U (en) | 2020-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021590414.1U Active CN212233494U (en) | 2020-07-31 | 2020-07-31 | Air duct shell and electric hair drier |
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| Country | Link |
|---|---|
| CN (1) | CN212233494U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111938291A (en) * | 2020-07-31 | 2020-11-17 | 深圳市物种起源科技有限公司 | Air duct shell and electric hair drier |
-
2020
- 2020-07-31 CN CN202021590414.1U patent/CN212233494U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111938291A (en) * | 2020-07-31 | 2020-11-17 | 深圳市物种起源科技有限公司 | Air duct shell and electric hair drier |
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