CN215186169U - Hand-held electric appliance - Google Patents
Hand-held electric appliance Download PDFInfo
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- CN215186169U CN215186169U CN202120612435.7U CN202120612435U CN215186169U CN 215186169 U CN215186169 U CN 215186169U CN 202120612435 U CN202120612435 U CN 202120612435U CN 215186169 U CN215186169 U CN 215186169U
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Abstract
The utility model discloses a hand-held type electrical apparatus belongs to the electrical apparatus field, the problem of driving motor's inner structure being stained with water easily among the prior art is solved, the technical scheme who solves this problem mainly includes handheld body and functional component, this internal driving motor who drives functional component that is equipped with of handheld, functional component can dismantle with handheld body and be connected, handheld body includes shell and inner shell, the inner shell is installed in the shell, form heat dissipation clearance between the outer wall of inner shell and the inner wall of shell, driving motor seal installation is in the inner shell. The utility model discloses mainly used improves the water proof to driving motor.
Description
Technical Field
The utility model relates to an electrical apparatus, especially a hand-held type electrical apparatus.
Background
The existing hand-held electric appliance has small size, is very convenient to carry and use, and is more suitable for cleaning smaller space. Because the small volume is pursued, the structure of the handheld electric appliance is compact, in order to radiate heat for the driving motor, a heat radiating air duct is generally designed in the driving motor, the driving motor drives the fan assembly to generate suction force, and meanwhile, the air flow radiates heat for the driving motor through the heat radiating air duct in the driving motor. However, there is a problem that when the air stream carries water vapor, the internal structure of the driving motor is wet and easy to be rusted, and when the air stream is serious, the internal structure of the driving motor is short-circuited and burned.
SUMMERY OF THE UTILITY MODEL
The utility model aims to reach provides a hand-held type electrical apparatus, improves the water proof to driving motor.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a hand-held type electrical apparatus, includes handheld body and functional component, this internal driving motor who drives functional component that is equipped with of handheld, functional component can dismantle with handheld body and be connected, and handheld body includes shell and inner shell, and the inner shell is installed in the shell, forms heat dissipation clearance between the outer wall of inner shell and the inner wall of shell, and driving motor seal installation is in the inner shell.
As a preferable scheme, a waterproof bearing is arranged at the front end of the inner shell, and an output shaft of the driving motor is matched with the waterproof bearing and penetrates through the waterproof bearing to be connected with the coupling for transmission; or the front end of the inner shell is provided with a waterproof bearing, the inner ring of the waterproof bearing is connected with the coupler in a matching way, and the output shaft of the driving motor is connected with the coupler in an inserting way.
As a preferred scheme, the front end of the inner shell is provided with a closed end cover and a coupling, the closed end cover separates the coupling from the driving motor, and an output shaft of the driving motor is in transmission connection with the coupling through magnetic force.
As a further preferred scheme, the front end of the outer shell is provided with a protective end cover, the protective end cover is provided with a connecting through hole and a containing groove for hiding the coupler, the functional assembly penetrates through the connecting through hole to be in transmission connection with the coupler, and the front end of the inner shell is in plug-in fit positioning with the protective end cover.
Preferably, a battery for supplying power to the driving motor is hermetically installed in the inner casing, and a partition board for separating the driving motor from the battery is arranged in the inner casing.
As a further preferable scheme, the peripheral side surface of the shell is provided with an operating switch, the position of the operating switch corresponds to the position of the driving motor, and the battery is positioned behind the driving motor so that the gravity of the handheld body is uniformly distributed.
As a further preferable scheme, the inner shell includes a first shell and a second shell, the first shell is connected with the second shell to clamp and fix the driving motor and the battery, and a sealing gasket is arranged at a joint of the first shell and the second shell.
Preferably, the front end of the inner shell is provided with a connecting lug, the front end of the inner wall of the outer shell is provided with a connecting hole, and a connecting screw penetrates through the connecting lug to be connected with the connecting hole to connect the inner shell with the outer shell.
As a further preferred scheme, the rear end of the outer shell is provided with a rear cover, the rear cover is connected with the inner shell through screws so that the inner shell is suspended relative to the outer shell to form a heat dissipation gap, the rear cover is provided with an air outlet, the front end of the outer shell is provided with an air inlet, and the air outlet is communicated with the air inlet through the heat dissipation gap.
As a preferred scheme, the functional component comprises a dust collection component and/or an expansion component, the dust collection component comprises a fan part and a dust collector, the rear end of the fan part is detachably connected with the handheld body, the dust collector is connected to the front end of the fan part, the expansion component comprises a connector and a tool head, the rear end of the connector is detachably connected with the handheld body, the tool head is connected to the front end of the connector, and the tool head comprises at least one of a brush head, a drill bit, a polishing wheel, a saw blade, a feather duster and a screwdriver.
After the technical scheme is adopted, the utility model has the advantages of as follows: with driving motor seal installation in the inner shell, design the heat dissipation clearance simultaneously and dispel the heat to driving motor between the inner wall of the outer wall of inner shell and shell, not only can keep having sufficient heat exchange area between air that dispels the heat and the driving motor, ensure the radiating effect, mix into steam in the air that dispels the heat in addition and also can not exert an influence to driving motor's inner structure, ensure driving motor's working property and life.
Drawings
The present invention will be further explained with reference to the accompanying drawings:
fig. 1 is an exploded view of a hand-held electric appliance according to the present invention;
FIG. 2 is a cross-sectional view of the hand-held body according to the present invention;
fig. 3 is a sectional view of the hand-held body according to the present invention (ii);
fig. 4 is an exploded view of the hand-held body of the present invention.
Detailed Description
As shown in fig. 1 to 4, the utility model provides a hand-held electrical appliance, including handheld body 1 and functional module, be equipped with the driving motor 11 who drives functional module in the handheld body 1, functional module can dismantle with handheld body 1 and be connected, and handheld body 1 includes shell 12 and inner shell 13, and inner shell 13 is installed in shell 12, forms heat dissipation gap 100 between the outer wall of inner shell 13 and the inner wall of shell 12, and driving motor 11 seal installation is in inner shell 13.
The utility model discloses with driving motor 11 seal installation in inner shell 13, design heat dissipation clearance 100 dispels the heat to driving motor 11 simultaneously between the outer wall of inner shell 13 and the inner wall of shell 12, not only can keep having sufficient heat exchange area between cooling air and the driving motor 11, ensure the radiating effect, sneak into steam in the cooling air moreover and also can not exert an influence to driving motor 11's inner structure, ensure driving motor 11's working property and life.
In order to realize power output and ensure a waterproof effect, a waterproof bearing 131 may be provided at the front end of the inner casing 13, and the output shaft 111 of the driving motor 11 is engaged with the waterproof bearing 131 and is connected to the coupling 14 through the waterproof bearing 131 for transmission. In addition, the structure of this embodiment may also be adopted, specifically, the front end of the inner shell 13 is provided with a waterproof bearing 131, an inner ring of the waterproof bearing 131 is connected with the coupling 14 in a matching manner, the output shaft 111 of the driving motor 11 is inserted into the coupling 14, and the coupling 14 is connected with the waterproof bearing 131 in a matching manner, so that the coupling 14 can be axially positioned. In addition to the waterproof sealing of the front end of the inner casing 13 by the waterproof bearing 131, a closed end cover and a coupling 14 may be provided at the front end of the inner casing 13, the closed end cover separates the coupling 14 from the driving motor 11, and the output shaft 111 of the driving motor 11 is in transmission connection with the coupling 14 by magnetic force.
If the coupler 14 protrudes out of the outer shell 12, the functional component is easy to collide with the coupler 14 laterally when being assembled and disassembled, so the front end of the outer shell 12 is provided with the protective end cover 15, the protective end cover 15 is provided with the connecting through hole 151 and the accommodating groove 152 hiding the coupler 14, the functional component penetrates through the connecting through hole 151 to be in transmission connection with the coupler 14, and the front end of the inner shell 13 is in inserting fit with the protective end cover 15 for positioning. The protective end cap 15 may be integrally formed with the housing 12 or may be fixedly mounted on the housing 12.
The hand-held electric appliance can be connected with the commercial power through a power cord or can be powered by a battery, for example, in the embodiment, a battery 16 for supplying power to the driving motor 11 is hermetically installed in the inner shell 13, and a partition 132 for separating the driving motor 11 and the battery 16 is arranged in the inner shell 13. The partition 132 separates the driving motor 11 and the battery 16, prevents the battery 16 from being affected by temperature rise generated by the operation of the driving motor 11, and can also play a supporting role to reduce the possibility of the concave deformation of the inner shell 13.
The peripheral side of shell 12 is equipped with operating switch 122, for letting the user use more omit, can design operating switch 122's position corresponding to driving motor 11's position, and battery 16 is located driving motor 11's rear makes the gravity evenly distributed of handheld body 1 simultaneously, and the user just can hold hand-held type electrical apparatus better when using like this, and is more laborsaving.
In order to realize the installation and sealing of the driving motor 11 and the battery 16, the inner case 13 of the present embodiment includes a first case 1301 and a second case 1302, the first case 1301 is connected with the second case 1302 to clamp and fix the driving motor 11 and the battery 16, and a sealing gasket is disposed at the connection between the first case 1301 and the second case 1302. If no gasket is used, the sealing connection can also be achieved by physical structural cooperation, such as grooves and protrusions. As a specific structure, the first case 1301 and the second case 1302 in the present embodiment are two portions divided by the inner case 13 in the length direction, forming two grooved plates. In addition, the inner case 13 may be divided into two parts at a middle position of the length to form two sleeves. The first housing 1301 and the second housing 1302 may be fixed by screws, or may be fixed by reducing the number of screws and increasing the number of snaps.
In order to fixedly connect the inner housing 13 and the outer housing 12, a connection lug 133 may be provided at a front end of the inner housing 13, a connection hole 121 may be provided at a front end of an inner wall of the outer housing 12, and a connection screw may pass through the connection lug 133 and be connected to the connection hole 121 to connect the inner housing 13 and the outer housing 12. After the front end of the inner shell 13 is fixed, the rear end of the inner shell 13 needs to be fixed, so that a rear cover 17 can be arranged at the rear end of the outer shell 12, the rear cover 17 is connected with the inner shell 13 through screws, so that the inner shell 13 is suspended relative to the outer shell 12 to form a heat dissipation gap 100, an air outlet 171 is arranged on the rear cover 17, an air inlet 120 is arranged at the front end of the outer shell 12, and the air outlet 171 is communicated with the air inlet 120 through the heat dissipation gap 100. After the inner shell 13 is suspended and fixed, a sleeve-shaped heat dissipation gap 100 can be formed, so that the contact area and the contact time between the heat dissipation air and the peripheral side surface of the inner shell 13 can be greatly increased, and the improvement of the heat dissipation efficiency and the effect of the driving motor 11 is facilitated.
In order to realize the multi-function of hand-held type electrical apparatus, can design the functional component and include dust absorption subassembly and extend the subassembly, the dust absorption subassembly includes fan portion 2 and dust arrester 3, the rear end of fan portion 2 can be dismantled with handheld body 1 and be connected, dust arrester 3 is connected in the front end of fan portion 2, it includes connector 4 and tool bit 5 to extend the subassembly, the rear end of connector 4 can be dismantled with handheld body 1 and be connected, tool bit 5 is connected in the front end of connector 4, tool bit 5 includes the brush head, the drill bit, the throwing aureola, the saw bit, in the feather duster and the screwdriver at least one. It can be understood that, when the product is sold, the dust collection assembly and the expansion assembly can be alternatively matched with the handheld body 1, so that the functional assembly can only comprise the dust collection assembly or only comprise the expansion assembly. With designing into detachable structure between fan portion 2 and the handheld body 1, when the user need realize other functions outside the dust absorption, can replace fan portion 2 with connector 4 to realize other more functions through instrument head 5, consequently can realize a tractor serves several purposes, it is more convenient not only to replace, promotes the convenience that the user used, has reduced the necessity that the user purchased multiple different function electric tool moreover, reduces the life expenditure. Besides installing functional components at the front end of the handheld body 1, an air blowing nozzle 6 can be installed at the rear end of the handheld body 1 to realize an air blowing function.
In addition to the above preferred embodiments, the present invention has other embodiments, and those skilled in the art can make various changes and modifications according to the present invention without departing from the spirit of the present invention, which should fall within the scope defined by the appended claims.
Claims (10)
1. The utility model provides a hand-held type electrical apparatus, includes handheld body and functional component, this internal driving motor who drives functional component that is equipped with of handheld, functional component and handheld body can dismantle the connection, its characterized in that, handheld body includes shell and inner shell, and the inner shell is installed in the shell, forms heat dissipation clearance between the outer wall of inner shell and the inner wall of shell, and driving motor seal installation is in the inner shell.
2. The hand-held electric appliance according to claim 1, wherein a waterproof bearing is arranged at the front end of the inner shell, and an output shaft of the driving motor is matched with the waterproof bearing and penetrates through the waterproof bearing to be connected with the coupling for transmission; or the front end of the inner shell is provided with a waterproof bearing, the inner ring of the waterproof bearing is connected with the coupler in a matching way, and the output shaft of the driving motor is connected with the coupler in an inserting way.
3. The hand-held electric appliance according to claim 1, wherein the front end of the inner casing is provided with a closed end cap and a coupling, the closed end cap separates the coupling from the driving motor, and an output shaft of the driving motor is in transmission connection with the coupling through magnetic force.
4. The hand-held electric appliance according to claim 2 or 3, wherein the front end of the outer shell is provided with a protective end cover, the protective end cover is provided with a connecting through hole and a containing groove for hiding the coupler, the functional component penetrates through the connecting through hole to be in transmission connection with the coupler, and the front end of the inner shell is in plug-in fit positioning with the protective end cover.
5. The hand-held appliance according to claim 1, wherein a battery for supplying power to the driving motor is hermetically installed in the inner case, and a partition for separating the driving motor from the battery is provided in the inner case.
6. The hand-held electric appliance according to claim 5, wherein the outer peripheral side of the housing is provided with an operating switch, the operating switch is positioned corresponding to the driving motor, and the battery is positioned behind the driving motor to uniformly distribute the gravity of the hand-held body.
7. The hand-held electric appliance according to claim 5, wherein the inner casing comprises a first casing and a second casing, the first casing is connected with the second casing to clamp and fix the driving motor and the battery, and a sealing gasket is arranged at the joint of the first casing and the second casing.
8. The hand-held electric appliance according to claim 1, wherein the front end of the inner casing is provided with a connecting lug, the front end of the inner wall of the outer casing is provided with a connecting hole, and a connecting screw passes through the connecting lug to be connected with the connecting hole to connect the inner casing with the outer casing.
9. The hand-held electric appliance according to claim 8, wherein the rear end of the outer casing is provided with a rear cover, the rear cover is connected with the inner casing through screws so that the inner casing is suspended relative to the outer casing to form a heat dissipation gap, the rear cover is provided with an air outlet, the front end of the outer casing is provided with an air inlet, and the air outlet is communicated with the air inlet through the heat dissipation gap.
10. The handheld electric appliance according to claim 1, wherein the functional component comprises a dust collection component and/or an expansion component, the dust collection component comprises a fan portion and a dust collector, the rear end of the fan portion is detachably connected with the handheld body, the dust collector is connected to the front end of the fan portion, the expansion component comprises a connector and a tool head, the rear end of the connector is detachably connected with the handheld body, the tool head is connected to the front end of the connector, and the tool head comprises at least one of a brush head, a drill bit, a polishing wheel, a saw blade, a feather duster and a screwdriver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120612435.7U CN215186169U (en) | 2021-03-25 | 2021-03-25 | Hand-held electric appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120612435.7U CN215186169U (en) | 2021-03-25 | 2021-03-25 | Hand-held electric appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215186169U true CN215186169U (en) | 2021-12-14 |
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ID=79352952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120612435.7U Active CN215186169U (en) | 2021-03-25 | 2021-03-25 | Hand-held electric appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215186169U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114986288A (en) * | 2022-05-13 | 2022-09-02 | 浙江洛伦兹电机科技有限公司 | Wall surface grinding machine adopting novel brushless motor structure and using method thereof |
-
2021
- 2021-03-25 CN CN202120612435.7U patent/CN215186169U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114986288A (en) * | 2022-05-13 | 2022-09-02 | 浙江洛伦兹电机科技有限公司 | Wall surface grinding machine adopting novel brushless motor structure and using method thereof |
| CN114986288B (en) * | 2022-05-13 | 2024-02-02 | 浙江洛伦兹电机科技有限公司 | Wall surface grinding machine adopting novel brushless motor structure and application method thereof |
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