CN210197692U - Hot air gun - Google Patents
Hot air gun Download PDFInfo
- Publication number
- CN210197692U CN210197692U CN201920885307.2U CN201920885307U CN210197692U CN 210197692 U CN210197692 U CN 210197692U CN 201920885307 U CN201920885307 U CN 201920885307U CN 210197692 U CN210197692 U CN 210197692U
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- China
- Prior art keywords
- shell
- lithium battery
- fan blade
- heating
- circuit board
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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- 238000010438 heat treatment Methods 0.000 claims abstract description 41
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 40
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 40
- 238000007664 blowing Methods 0.000 claims abstract description 14
- 238000005485 electric heating Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 17
- 238000000034 method Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model provides a hot air gun, which comprises a shell, an air outlet, a lithium battery, a circuit board, a control panel and a heating inner core; a blowing mechanism is arranged in the inner cavity of the shell and between the corresponding lithium battery and the heating inner core; the blowing mechanism comprises a hollow cup motor and fan blades. The fan blade installation direction is that the fan blade rotates and drives the direction of the air-actuated lithium battery to flow to the direction of the heating inner core. The utility model has the advantages of reasonable design, can effectively the heat that produces in the integrated utilization hot-blast rifle casing and cooperation generate heat the inner core for the hot-blast rifle heat supply, calorific loss is few, and heating efficiency is high, and this heat utilization process can effectively dispel the heat to battery and circuit board department simultaneously, has effectively prolonged the life of hot-blast rifle.
Description
Technical Field
The utility model relates to an electric tool technical field especially relates to a hot-blast rifle.
Background
The hot air gun is a tool for welding and picking up elements by hot air blown out of a gun core of a heating resistance wire. A common heat gun generally comprises a shell, wherein a circuit board, a power supply, a blowing part and a heating inner core are arranged in the shell. The heating inner core is arranged at the front end of the shell and connected with the circuit board and the power circuit, the power supply supplies power and the circuit board controls heating, the blowing component is usually designed into a fan blade structure and located behind the heating inner core and blows air to the heating inner core, and therefore heat generated by the heating inner core and air flow generated by rotation of the fan blade form hot air to be blown out from a wind nozzle at the front end of the shell. At ordinary hot-blast rifle, only through the inner core heat supply that generates heat, the heating efficiency is relatively poor, and heat utilization is imperfect, exists the waste.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: in order to overcome the deficiency of the prior art, the utility model provides a structural design is reasonable, can effectively integrate the inside heat of hot-blast rifle, and heat utilization is perfect, effectively improves the hot-blast rifle of heating efficiency.
The utility model provides a technical scheme that its technical problem adopted is: a hot air gun comprises a shell, wherein the shell is hollow and provided with an inner cavity, the front end of the shell is provided with an air outlet, a lithium battery is fixed at the rear end of the inner cavity of the shell, a circuit board is fixed outside the shell corresponding to the lithium battery, a control panel is fixed on the outer surface of the shell, the control panel, the circuit board and the lithium battery are connected through a circuit, and a heating inner core connected with the circuit board is fixed on the inner side of the air outlet; a blowing mechanism is arranged in the inner cavity of the shell and between the corresponding lithium battery and the heating inner core; the blowing mechanism comprises a hollow cup motor and a fan blade, the hollow cup motor is arranged on one side close to the heating inner core, the fan blade is arranged on one side close to the lithium battery, the output end of the hollow cup motor extends out and is in transmission connection with the fan blade, and the fan blade is arranged in the direction that the fan blade rotates to drive the air-operated lithium battery to flow to the heating inner core; the inner diameter of the inner cavity is gradually reduced from the end of the lithium battery close to the fan blade to the position of the side of the hollow cup motor close to the heating inner core, and a flow guide cavity which is gradually reduced and tightened is formed.
In the above scheme, the fan blade of hollow cup motor and reverse installation has been designed ingeniously, in the use, the fan blade is from the backward integrated bloies forward, when the heat supply, the lithium cell, the heat accessible fan blade that the circuit board produced blows and carries to the air outlet, the heat that hollow cup motor work produced is also carried forward by the air current direction that the fan blade drove, effectively utilized the lithium cell, the circuit board, the heat that hollow cup motor during operation produced, the inside radiating efficiency of hot-blast rifle has been improved, heat loss has been reduced, heat supply efficiency has been improved.
Furthermore, in order to facilitate the installation of the lithium battery, the inner wall of the shell is provided with a supporting column which can support and limit the lithium battery at the position corresponding to the lithium battery.
Furthermore, in order to facilitate the installation of the circuit board, the inner wall of the shell is respectively fixed with a buckle corresponding to the two sides of the circuit board, and the two ends of the circuit board are respectively pushed into the buckles to be fixed with the shell.
Furthermore, an electric heating wire is wound in the heating inner core and is connected with a circuit board through a circuit, an air guide hole is formed in the tail end of the heating inner core in an inwards concave mode, and the inner diameter of the air guide hole is gradually reduced from the tail end to the front end of the heating inner core.
Preferably, in order to facilitate the installation of the coreless motor and the fan blade, the blowing mechanism comprises an installation support fixed on the inner wall of the shell, the installation support is provided with a motor support used for clamping the coreless motor corresponding to the front end of the shell, a shield with a cavity inside is fixed at the rear end of the installation support corresponding to the motor support, and the fan blade is rotatably connected in the shield.
The beneficial effects of the utility model are that, the utility model provides a hot-blast rifle, structural design is reasonable, and the fan blade of reverse installation of design adopts the coreless motor to supply power for the fan blade, and the heat that can effectively the integrated heat that utilizes production in the hot-blast rifle casing and cooperation generate heat the inner core and be the hot-blast rifle heat supply, and calorific loss is few, and heating efficiency is high, and this heat utilization process can effectively dispel the heat to battery and circuit board department simultaneously, has effectively prolonged the life of hot-blast rifle.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of the preferred embodiment of the present invention.
In the figure 1, an air outlet 2, a heating inner core 3, an electric heating wire 4, a hollow cup motor 5, a motor support 6, a shield 7, a fan blade 8, a shell 9, a buckle 10, a circuit board 11, a control panel 12, a lithium battery 13, a bearing column 14, a flow guide cavity 15 and an air guide hole.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
A heat gun as shown in FIG. 1 is a preferred embodiment of the present invention, and includes a housing 8. The inside cavity of casing 8 has the inner chamber, 8 front ends of casing have the air outlet. The rear end of the inner cavity of the shell 8 is fixed with a lithium battery 12, and a circuit board 10 is fixed outside the shell 8 corresponding to the lithium battery 12. In order to facilitate the installation of the lithium battery 12, the inner wall of the housing 8 is provided with a supporting column 13 which can support and limit the lithium battery 12 at a position corresponding to the lithium battery 12. In order to facilitate the installation of the circuit board 10, the inner wall of the casing 8 is respectively fixed with a buckle 9 corresponding to two sides of the circuit board 10, and two ends of the circuit board 10 are respectively pushed into the buckles 9 to be fixed with the casing 8.
8 surfaces of casing still be fixed with control panel 11, circuit board 10 and lithium cell 12 line connection, 1 inboard of air outlet is fixed with the inner core 2 that generates heat of being connected with circuit board 10. The heating core 2 is internally wound with a heating wire 3, the heating wire 3 is connected with a circuit board, the tail end of the heating core 2 is inwards provided with an air guide hole 15, and the inner diameter of the air guide hole 15 is gradually reduced from the tail end to the front end of the heating core 2. The design of the air guide hole 15 can provide guidance for the airflow blown by the fan blade 7 to flow to the air outlet, and the gradually reduced inner diameter can improve the airflow velocity and increase the air outlet power of the air outlet 1.
A blowing mechanism is arranged in the inner cavity of the shell 8 corresponding to the space between the lithium battery 12 and the heating inner core 2; the blowing mechanism comprises a hollow cup motor 4 and a fan blade 7. The rotating speed of the hollow cup motor 4 can reach 20000 to 30000 r/min. The hollow cup motor 4 is arranged on one side close to the heating inner core 2, the fan blade 7 is arranged on one side close to the lithium battery 12, and the output end of the hollow cup motor 4 extends out and is in transmission connection with the fan blade 7. In order to facilitate the installation of the coreless motor 4 and the fan blade 7, the blowing mechanism comprises an installation support fixed on the inner wall of the shell 8, the installation support is provided with a motor support 5 used for clamping the coreless motor 4 corresponding to the front end of the shell 8, the installation support is fixed with a shield 6 with a cavity inside corresponding to the rear end of the motor support 5, and the fan blade 7 is rotatably connected in the shield 6. The inner diameter of the inner cavity is gradually reduced from the end of the lithium battery 12 close to the fan blade 7 to the position of the coreless motor 4 close to the heating inner core 2, and a flow guide cavity 14 which is gradually reduced and tightened is formed.
The fan blade 7 installation direction is that the fan blade rotates and drives the pneumatic lithium cell 12 direction flow direction and generate heat the inner core 2 direction, and the fan blade 7 of so installation can be with the air current of lithium cell 12 department to the propelling movement of air outlet 1, forms the air current that from the back to the front and have the direction. In the moving process, the air flow drives the heat of the lithium battery 12 and the circuit board 10 and the heat of the coreless motor 4 to be transmitted to the air outlet.
The hot air gun designed in this way is reasonable in structural design, skillfully designs the hollow cup motor 4 and the fan blade 7 installed reversely, and can effectively integrate and utilize heat generated in the hot air gun shell 8 and cooperate with the heating inner core 2 to supply heat for the hot air gun. The fan blade 7 is from the integrated blowing of back forward, when the heat supply, lithium cell 12, the heat accessible fan blade 7 that circuit board 10 produced blows and carries to air outlet 1, the heat that the work of coreless motor 4 produced is also carried forward by the air current direction of fan blade 7 drive, lithium cell 12 has effectively been utilized, circuit board 10, the heat that the work of coreless motor 4 produced, the inside radiating efficiency of hot-blast rifle has been improved, the heat loss has been reduced, the calorific loss is few, the heating efficiency is improved, this heat utilization process can effectively dispel the heat to lithium cell 12 and circuit board 10 department simultaneously, the life of hot-blast rifle has effectively been prolonged.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (5)
1. The utility model provides a hot-blast rifle, includes casing (8), and casing (8) inside cavity has the inner chamber, casing (8) front end has air outlet (1), its characterized in that: a lithium battery (12) is fixed at the rear end of the inner cavity of the shell (8), a circuit board (10) is fixed in the shell (8) corresponding to the outside of the lithium battery (12), a control panel (11) is further fixed on the outer surface of the shell (8), the control panel (11), the circuit board (10) and the lithium battery (12) are in circuit connection, and a heating inner core (2) connected with the circuit board (10) is fixed on the inner side of the air outlet (1); a blowing mechanism is arranged in the inner cavity of the shell (8) corresponding to the space between the lithium battery (12) and the heating inner core (2); the blowing mechanism comprises a hollow cup motor (4) and a fan blade (7), the hollow cup motor (4) is arranged on one side close to the heating inner core (2), the fan blade (7) is arranged on one side close to the lithium battery (12), the output end of the hollow cup motor (4) extends out and is in transmission connection with the fan blade (7), and the fan blade (7) is arranged in the direction that the fan blade (7) rotates to drive the air-operated lithium battery (12) to flow to the heating inner core (2); the inner diameter of the inner cavity is gradually reduced from the end of the lithium battery (12) close to the fan blade (7) to the position of the hollow cup motor (4) close to the heating inner core (2) side, and a flow guide cavity (14) which is gradually reduced and tightened is formed.
2. The heat gun of claim 1, wherein: the inner wall of the shell (8) is provided with a supporting column (13) which can support and limit the lithium battery (12) at the position corresponding to the lithium battery (12).
3. The heat gun of claim 1, wherein: the inner wall of the shell (8) is fixed with buckles (9) corresponding to the two sides of the circuit board (10), and the two ends of the circuit board (10) are respectively pushed into the buckles (9) to be fixed with the shell (8).
4. The heat gun of claim 1, wherein: the heating core (2) is internally wound with an electric heating wire (3), the electric heating wire (3) is connected with a circuit board, the tail end of the heating core (2) is inwards concave and provided with an air guide hole, and the inner diameter of the air guide hole is gradually reduced from the tail end to the front end of the heating core.
5. The heat gun of claim 1, wherein: the blowing mechanism comprises a mounting support fixed on the inner wall of a shell (8), the mounting support is provided with a motor support (5) used for clamping a coreless motor (4) corresponding to the front end of the shell (8), the mounting support is fixed with a shield (6) with a cavity inside corresponding to the rear end of the motor support (5), and the fan blade (7) is rotatably connected in the shield (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920885307.2U CN210197692U (en) | 2019-06-12 | 2019-06-12 | Hot air gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920885307.2U CN210197692U (en) | 2019-06-12 | 2019-06-12 | Hot air gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210197692U true CN210197692U (en) | 2020-03-27 |
Family
ID=69873305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920885307.2U Withdrawn - After Issue CN210197692U (en) | 2019-06-12 | 2019-06-12 | Hot air gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210197692U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145866A (en) * | 2019-06-12 | 2019-08-20 | 常州武进长城工具有限公司 | Heat gun |
-
2019
- 2019-06-12 CN CN201920885307.2U patent/CN210197692U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145866A (en) * | 2019-06-12 | 2019-08-20 | 常州武进长城工具有限公司 | Heat gun |
| CN110145866B (en) * | 2019-06-12 | 2023-12-15 | 常州武进长城工具有限公司 | Hot air gun |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200327 Effective date of abandoning: 20231215 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20200327 Effective date of abandoning: 20231215 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |