CN207354885U - One kind heat dissipation grass trimmer - Google Patents
One kind heat dissipation grass trimmer Download PDFInfo
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- CN207354885U CN207354885U CN201721153764.XU CN201721153764U CN207354885U CN 207354885 U CN207354885 U CN 207354885U CN 201721153764 U CN201721153764 U CN 201721153764U CN 207354885 U CN207354885 U CN 207354885U
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- heat dissipation
- motor
- grass trimmer
- fan housing
- cutting
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Abstract
The utility model discloses one kind heat dissipation grass trimmer, including main casing, cutting chamber is provided with main casing, motor fan housing is provided with main casing, motor wind chamber is formed in motor fan housing, motor is connected with motor fan housing, fan blade is connected with the output shaft of motor, base and power supply unit are connected with motor fan housing, the first heat dissipation cavity is formed between base and power supply unit, circuit board is provided with first heat dissipation cavity, several are provided with base and connects the first ventilation hole and the second ventilation hole；The utility model forms a heat dissipation channel by the first heat dissipation cavity of the second ventilation hole and motor fan housing, motor wind chamber and cutting chamber, fan blade is to heat dissipation channel exhausting, gas radiates all components from the first ventilation hole into heat dissipation channel, then it is discharged, good heat dissipation effect, without being separately provided radiator near each component, reduce the volume of heat dissipation grass trimmer, reduce the production cost of heat dissipation grass trimmer.
Description
Technical field
The utility model belongs to grass trimmer field, and in particular to one kind heat dissipation grass trimmer.
Background technology
At present, power-operated mower is in order to enable battery pack and dust-proof, the waterproof of circuit board, it usually needs in battery pack and electricity
The top of road plate sets protective cover, plays the role of protection element, still, power-operated mower at work, battery pack, circuit board
Substantial amounts of heat can be produced with motor, and is gathered in protective cover, heat is assembled for a long time, and the electronics such as battery pack can be caused first
Device is abnormal, and motor works in improper environment and can reduce the service life for a long time.
Existing power-operated mower sets a heat dissipation dress to radiate near each electronic component for needing to radiate
Put, radiator is excessive, improves the production cost of power-operated mower, while excessive radiator increases power-operated mower
Volume so that power-operated mower is more heavy, inconvenient to use.
Utility model content
Technical problem to be solved in the utility model is just to provide a kind of heat dissipation grass trimmer of good heat dissipation effect.
In order to solve the above technical problems, the utility model adopts the following technical solution：One kind heat dissipation grass trimmer, including main casing
Body, cutting chamber is provided with main casing, and cutting intracavitary is provided with cutting blade, motor fan housing, motor wind are provided with main casing
The motor wind chamber connected with cutting chamber is formed in cover, motor is connected with motor fan housing, is connected with and cuts on the output shaft of motor
The co-rotational fan blade of cutting blade, is connected with base and power supply unit on motor fan housing, is formed between base and power supply unit
One heat dissipation cavity, is provided with circuit board in the first heat dissipation cavity, several first heat dissipation cavities of connection and extraneous the are provided with base
One ventilation hole and the second ventilation hole of several first heat dissipation cavities of connection and motor wind chamber.
Further, the bottom of motor fan housing is provided with flange, and multiple connection cutting chambers and the external world are provided with flange
4th ventilation hole.
Further, the inner wall of motor fan housing is vertically arranged with multiple protrusions.
Further, the raised upper and lower ends for running through motor fan housing.
Further, the inner wall of motor fan housing is provided with multiple positioning columns, positioning column and motor and leads to close to one end of base
Cross screw connection.
Further, fan blade include bottom plate, the casing being socketed with the output shaft of motor and be connected to plate upper surface around
Casing is in several flabellums of divergent shape distribution.
Further, the bottom of bottom plate is provided with positioning plate, is provided with positioning plate and the matched cutting of cutting blade
Groove, cutting blade are fixed by screws in cutting groove.
Further, the first ventilation hole is in strip.
Further, several second ventilation holes are arranged in honeycomb and positioned at the lower sections of circuit board.
Further, plug connector is provided with base, is provided with power supply unit and the matched spliced eye of plug connector.
Compared with prior art, the beneficial effects of the utility model are：
1st, when grass trimmer works, power on, electrical power, the output shaft of motor, which rotates, to be driven fan blade and consolidate with fan blade
The cutting blade being scheduled on together rotates, and the pressure for cutting intracavitary is more than ambient pressure, and formation external and internal pressure is poor, and cutting blade rotates
The green grass of cutting intracavitary is cut into, the green grass then cut down collects grass since inside and outside differential pressure is discharged into from the outlet of main casing
In bag；The fan blade rotated at the same time plays pumping wind action, and ambient atmos are after the first ventilation hole is drawn into the first heat dissipation cavity, and one
Portion gas is flowed in the first heat dissipation cavity and radiated to circuit board, and then gas enters motor wind intracavitary from the second ventilation hole
Radiate to motor, last gas is drawn into cutting intracavitary from motor wind chamber and discharges cutting chamber, by the second ventilation hole and
The design of motor fan housing so that the first heat dissipation cavity, motor wind chamber and cutting chamber form a heat dissipation channel, cut the rotation in chamber
Fan blade heat dissipation channel is entered from the first ventilation hole to heat dissipation channel exhausting, gas, can be to all components in heat dissipation channel
Radiate, the gas into grass trimmer is discharged after radiating to each component, good heat dissipation effect, without each
Component is nearby separately provided radiator, reduces the volume of grass trimmer, reduces the production cost of grass trimmer.
2nd, when the fan blade for cutting the rotation in chamber carries out exhausting to cutting chamber and motor wind chamber, gas is from the 4th ventilation hole
Into cutting chamber, increase cutting chamber and extraneous pressure difference so that green grass that cutting intracavitary is cut off is more enough to be more prone to be discharged
Chamber is cut, fills collection straw bag.
3rd, by setting the protrusion through motor fan housing side wall on the inner wall of motor fan housing, increase cutting chamber with it is extraneous
Pressure difference, protrusion run through motor fan housing inner wall, and the effect for increasing inside and outside differential pressure is more preferable so that the green grass that cutting intracavitary is cut off is more enough
It is more prone to be discharged cutting chamber, fills collection straw bag.
4th, motor is connected by positioning column and screw with motor fan housing, and dismountable structure is easy to motor fan housing and motor
Individually maintenance and replacement, reduce maintenance cost.
5th, by by fan blade be arranged to bottom plate, the casing being socketed with the output shaft of motor and be connected to plate upper surface around
Casing in several flabellums of divergent shape distribution structure so that for fan blade while exhausting, bottom plate is to the green grass of lower section and upper
The flabellum of side plays the role of separation, and bottom plate can prevent the green grass that cutting intracavitary is cut from entering in fan blade so that fan blade exists
While exhausting effect is good, cleaning is kept, without clearing up fan blade, reduces maintenance cost.
6th, when installing fan blade and cutting blade, only cutting blade need to be embedded in cutting groove and uses screw-driving again, pacified
It is simple to fill polyvinyl chloride, without being positioned to cutting blade, improves efficiency of assembling, and cutting blade and the bottom plate of fan blade bottom
It is connected by screw, can be individually replaced if cutting blade or fan blade are damaged, reduces maintenance cost.
7th, the design of the first ventilation hole strip so that the first ventilation hole is not easy to be blocked by dust, and ventilation effect is more preferable,
Ensure the lasting heat dissipation of circuit board.
8th, the second ventilation hole is arranged in honeycomb and is located at circuit positioned at the lower section of circuit board, honey comb like second ventilation hole
The lower section of plate, more faster in the heat that order wire circuit plate produces, heat dissipation effect is more preferable.
9th, plug connector is provided with base, is provided with battery pack support base and the matched spliced eye of plug connector, installation
When, spliced eye is engaged with plug connector, and while the battery pack support base on to base carries out spacing, plug connector has the bottom of to
The effect of fool proof, prevents that battery pack support base is anti-loaded during seat assembling battery pack support base.
Compared with prior art, the design that the utility model passes through the second ventilation hole and motor fan housing so that the first heat dissipation
Chamber, motor wind chamber and cutting chamber form a heat dissipation channel, cut the fan blade of rotation in chamber to heat dissipation channel exhausting, gas from
First ventilation hole enters heat dissipation channel, can radiate to all components in heat dissipation channel, the gas into grass trimmer exists
It is discharged after radiating to each component, good heat dissipation effect, without being separately provided radiator near each component,
Reduce the volume of heat dissipation grass trimmer, reduce the production cost of heat dissipation grass trimmer.
Brief description of the drawings
The utility model is further described with reference to the accompanying drawings and detailed description：
Fig. 1 is a kind of stereogram for the grass trimmer that radiates of the utility model；
Fig. 2 is a kind of explosive view for the grass trimmer that radiates of the utility model；
Fig. 3 is the schematic diagram of cutting chamber internal structure；
Fig. 4 is the schematic diagram for not installing protective cover；
Fig. 5 is a kind of partial schematic diagram for the grass trimmer that radiates of the utility model.
Wherein：1st, main casing；11st, chamber is cut；12nd, fan blade；13rd, cutting blade；2nd, motor fan housing；21st, flange；211st,
Four ventilation holes；22nd, it is raised；23rd, motor wind chamber；24th, positioning column；3rd, motor；4th, base；41st, the first ventilation hole；42nd, second is logical
Air holes；43rd, plug connector；5th, circuit board；6th, battery pack support base；61st, third venting hole；62nd, spliced eye；63rd, battery pack is installed
Groove；7th, battery pack；8th, support plate；9th, protective cover.
Embodiment
It is described further referring to figs. 1 to the embodiment of Fig. 5 heat dissipation grass trimmers a kind of to the utility model.
One kind heat dissipation grass trimmer, including main casing 1, the cutting chambers of 1 upper and lower ends of main casing is provided through on main casing 1
11, motor fan housing 2 has been connected by screw on main casing 1, the motor wind chamber connected with cutting chamber 11 is formed in motor fan housing 2
23, motor 3 is provided with motor wind chamber 23, and the inner wall of motor fan housing 2 is provided with multiple positioning columns 24, positioning column 24 and motor 3
One end of output shaft away from motor 3 is connected by screw, and is connected with fan blade 12 on the output shaft of motor 3, fan blade 12 include with
The vertical bottom plate of 3 output shaft of motor, the casing being socketed with the output shaft of motor 3 and it is connected to plate upper surface and is in around casing
Several flabellums of divergent shape distribution, the bottom of bottom plate is provided with positioning plate, cutting groove is provided with positioning plate, is set in cutting groove
The cutting blade 13 for being equipped with cutting groove and being connected with cutting grooved screw, fan blade 12 and cutting blade 13 are respectively positioned on cutting chamber
In 11, cutting blade 13 and fan blade 12 with motor 3 output shaft common rotation.
The bottom of motor fan housing 2 is provided with outwardly directed flange 21, and multiple connection cutting chambers 11 are provided with flange 21
With the 4th extraneous ventilation hole 211, the inner wall of motor fan housing 2 is vertically arranged with multiple upper and lower ends through motor fan housing 2
Protrusion 22, protrusion 22 are formed from the inner wall of motor fan housing 2 to 23 sunken inside of motor wind chamber.
The top of motor fan housing 2 is connected with base 4, is connected with base 4 with the first heat dissipation cavity of formation of base 4 for Denso
Put, base 4 and battery pack support base 6 clamp the circuit board 5 being located in the first heat dissipation cavity, and connection first is provided with base 4 and is dissipated
First ventilation hole 41 of hot chamber and outside air, the second of the first heat dissipation cavity of connection and motor wind chamber 23 is additionally provided with base 4
Ventilation hole 42, the second ventilation hole 42 are arranged in honeycomb and are located at positioned at the lower section of circuit board 5, honey comb like second ventilation hole 42
The lower section of circuit board 5, more faster in the heat that order wire circuit plate 5 produces, heat dissipation effect is more preferable；Power supply unit includes
Battery pack support base 6 and support base form the protective cover 9 of the second heat dissipation cavity and the battery pack 7 in the second heat dissipation cavity, battery
The third venting hole 61 of several first heat dissipation cavities of connection and the second heat dissipation cavity, the first ventilation hole 41 are provided with bag support base 6
Be in strip with third venting hole 61, the design of strip so that the first ventilation hole 41 and third venting hole 61 be not easy by
Dust blocks, and ventilation effect is more preferable, ensures the lasting heat dissipation of circuit board 5 and battery pack 7；It is symmetrical arranged on battery pack support base 6
There are a two Battery pack bag mounting grooves 63, the battery pack 7 in two Battery pack bag mounting grooves 63 works alternatively, and every group includes two battery packs
7, the support plate 8 of strip is provided with the symmetrical shaft position of two Battery pack bag mounting grooves 63,8 part of support plate is located at battery pack
The top of mounting groove 63, prevents the play about 7 of the battery pack in battery pack mounting groove 63, when grass trimmer is run, under support plate 8
The upper surface in the vertical direction that surface props up battery pack 7 carries out battery pack 7 spacing, protective cover 9 and the side phase of battery pack 7
It is spacing to being carried out in the horizontal direction to battery pack 7, prevent battery pack 7 when grass trimmer is run because the vibrations of grass trimmer and
It is moved and comes off from 7 limiting slot of battery pack and influence the stability of power supply；Protective cover 9 is provided with two, two protective covers 9
The both sides of support plate 8 are respectively hinged at, support arm is provided with protective cover 9, support arm is hinged in support plate 8 by shaft,
The outside of protective cover 9 is provided with the handle that protective cover 9 is opened for operator, and protective cover 9 is transparent configuration, person's observation easy to operation
Battery in protective cover 9, when grass trimmer is run, two battery packs 7 of 8 side of support plate are powered, when 8 side of support plate
Two 7 not enough power supplies of battery pack when, two battery packs 7 that cutting machine switches to 8 opposite side of support plate charge, pull
Handle, the protective cover 9 for opening 7 side of battery pack of not enough power supply replace that Battery pack of discharge off, during which need not
Stop the operation of grass trimmer, improve the work efficiency of grass trimmer；Plug connector 43 is provided with base 4, is set on battery pack support base 6
It is equipped with spliced eye 62 matched with plug connector 43, during installation, spliced eye 62 is engaged with plug connector 43, on to base 4
While battery pack support base 6 carries out spacing, plug connector 43 has the function that to fool proof during the assembling battery pack support base 6 of base 4,
Prevent that battery pack support base 6 is anti-loaded.
When grass trimmer works, power on, motor 3 is powered, and the output shaft of motor 3 rotates, and output shaft, which rotates, drives wind
Leaf 12 and the cutting blade 13 being fixed together with fan blade 12 rotate, and the pressure cut in chamber 11 is more than ambient pressure, in formation
External pressure force difference, cutting blade 13 rotate the green grass being cut into cutting chamber 11, and the green grass then cut down is due to interior external pressure
Difference is discharged into collection straw bag from the outlet of main casing 1；The fan blade 12 rotated at the same time plays pumping wind action, and ambient atmos are from first
After ventilation hole 41 is drawn into the first heat dissipation cavity, a part of gas is flowed in the first heat dissipation cavity and radiated to circuit board 5, separately
A part of gas radiates the battery pack 7 in the second heat dissipation cavity into the second heat dissipation cavity by third venting hole 61, then
Gas enters in motor wind chamber 23 from the second ventilation hole 42 radiates motor 3, and last gas is drawn into from motor wind chamber 23
In cutting chamber 11 and cutting chamber 11 is discharged, passes through the design of the second ventilation hole 42, third venting hole 61 and motor fan housing 2 so that
First heat dissipation cavity, the second heat dissipation cavity, motor wind chamber 23 and cutting chamber 11 form heat dissipation channel, cut the rotation in chamber 11
Fan blade 12 enters heat dissipation channel to heat dissipation channel exhausting, gas from the first ventilation hole 41, can be to all first devices in heat dissipation channel
Part radiates, and the gas into grass trimmer is discharged after radiating to each component, good heat dissipation effect, without every
A component is nearby separately provided radiator, reduces the volume of grass trimmer, reduces the production cost of grass trimmer.
By the way that fan blade 12 is arranged to bottom plate, the casing being socketed with the output shaft of motor 3 and is connected to plate upper surface
Structure around casing in several flabellums of divergent shape distribution so that fan blade 12 is while exhausting, green grass of the bottom plate to lower section
Play the role of separation with the flabellum of top, the green grass that bottom plate can prevent from being cut in cutting chamber 11 enters in fan blade 12, makes
Fan blade 12 is obtained while exhausting effect is good, keeps cleaning, without clearing up fan blade 12, reduces maintenance cost.Installing
When fan blade 12 and cutting blade 13, only cutting blade 13 need to be embedded in cutting groove uses screw-driving again, and installation process is quick
Simply, without being positioned to cutting blade 13, efficiency of assembling is improved, and cutting blade 13 and the bottom plate of 12 bottom of fan blade pass through
Screw connects, and can be individually replaced if cutting blade 13 or fan blade 12 are damaged, and reduces maintenance cost.
The above is only the preferred embodiment of the utility model, and the scope of protection of the utility model is not limited merely to
Above-described embodiment, all technical solutions belonged under the utility model thinking belong to the scope of protection of the utility model.It should refer to
Go out, for those skilled in the art, some improvement under the premise of the utility model principle is not departed from and
Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (10)
1. one kind heat dissipation grass trimmer, including main casing, is provided with cutting chamber on main casing, and cutting intracavitary is provided with cutting blade,
It is characterized in that：Motor fan housing is provided with the main casing, the motor wind chamber connected with cutting chamber, institute are formed in motor fan housing
State and motor is connected with motor fan housing, be connected with the output shaft of motor and the co-rotational fan blade of cutting blade, the motor
Base and power supply unit are connected with fan housing, the first heat dissipation cavity is formed between base and power supply unit, is set in the first heat dissipation cavity
Have circuit board, be provided with the base several connection first heat dissipation cavities and the external world the first ventilation hole and several connect
Second ventilation hole of the first heat dissipation cavity and motor wind chamber.
A kind of 2. heat dissipation grass trimmer according to claim 1, it is characterised in that：The bottom of the motor fan housing is provided with convex
Edge, multiple connection cutting chambers and the 4th extraneous ventilation holes are provided with flange.
A kind of 3. heat dissipation grass trimmer according to claim 1 or 2, it is characterised in that：The inner wall of the motor fan housing is vertical
It is provided with multiple protrusions.
A kind of 4. heat dissipation grass trimmer according to claim 3, it is characterised in that：It is described raised above and below motor fan housing
Both ends.
A kind of 5. heat dissipation grass trimmer according to claim 1, it is characterised in that：The inner wall of the motor fan housing is provided with more
A positioning column, positioning column and motor are connected by screw close to one end of base.
A kind of 6. heat dissipation grass trimmer according to claim 1, it is characterised in that：The fan blade includes bottom plate, with motor
The casing and be connected to several flabellums of plate upper surface around casing in divergent shape distribution that output shaft is socketed.
A kind of 7. heat dissipation grass trimmer according to claim 6, it is characterised in that：The bottom of the bottom plate is provided with positioning
Plate, is provided with positioning plate and is fixed by screws in the matched cutting groove of cutting blade, the cutting blade in cutting groove.
A kind of 8. heat dissipation grass trimmer according to claim 1, it is characterised in that：First ventilation hole is in strip.
A kind of 9. heat dissipation grass trimmer according to claim 1, it is characterised in that：Several described second ventilation holes are arranged in
Honeycomb and the lower section for being located at circuit board.
A kind of 10. heat dissipation grass trimmer according to claim 1, it is characterised in that：Plug connector, institute are provided with the base
State and be provided with power supply unit and the matched spliced eye of plug connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721153764.XU CN207354885U (en) | 2017-09-09 | 2017-09-09 | One kind heat dissipation grass trimmer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721153764.XU CN207354885U (en) | 2017-09-09 | 2017-09-09 | One kind heat dissipation grass trimmer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207354885U true CN207354885U (en) | 2018-05-15 |
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ID=62352534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721153764.XU Active CN207354885U (en) | 2017-09-09 | 2017-09-09 | One kind heat dissipation grass trimmer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207354885U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107615978A (en) * | 2017-09-09 | 2018-01-23 | 浙江亚特电器有限公司 | One kind radiating hay mover |
-
2017
- 2017-09-09 CN CN201721153764.XU patent/CN207354885U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107615978A (en) * | 2017-09-09 | 2018-01-23 | 浙江亚特电器有限公司 | One kind radiating hay mover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 150 Wenlong Road, Yuxin Town, Nanhu District, Jiaxing City, Zhejiang Province Patentee after: Zhejiang Yate Electric Appliance Co.,Ltd. Address before: 314100 No. 150 Wenlong Road, Yuxin Town, Nanhu District, Jiaxing City, Zhejiang Province Patentee before: ZHEJIANG YAT ELECTRICAL APPLIANCE Co.,Ltd. |
|
| CP03 | Change of name, title or address |