CN208483800U - Electric hand tool - Google Patents
Electric hand tool Download PDFInfo
- Publication number
- CN208483800U CN208483800U CN201821025595.6U CN201821025595U CN208483800U CN 208483800 U CN208483800 U CN 208483800U CN 201821025595 U CN201821025595 U CN 201821025595U CN 208483800 U CN208483800 U CN 208483800U
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- Prior art keywords
- battery pack
- hand tool
- air
- air inlet
- electric hand
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- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses a kind of electric hand tool, electric hand tool includes: shell, motor, fan and battery pack, and shell is provided with the first air inlet and the first air outlet；Motor is arranged inside housings；Motor-driven fan, fan make the cooling air of hull outside flow to the first air outlet after the first air inlet；Battery pack includes: terminal accommodating portion, terminal accommodating portion contains terminal, terminal is electrically connected for realizing electric hand tool and battery pack, terminal accommodating is provided with ventilation gap in portion, ventilation gap is connected with the first air inlet, wherein, when battery pack is coupled to shell, the first air inlet is located at ventilation gap adjacent to the oblique upper of motor side.Thus, cooperated by shell, motor, fan and battery pack, can be improved the rate of heat dispation of electric hand tool, the radiating efficiency to battery pack can be promoted, it thereby may be ensured that the functional reliability of battery pack, and then can guarantee the functional reliability of electric hand tool.
Description
Technical field
The utility model relates to field of tool, more particularly, to a kind of electric hand tool.
Background technique
Under high current workload, battery pack is easy the excess temperature in the case where not being discharged and protects electric hand tool
Shield, battery pack overheat protector are primarily due to heat dissipation slowly, and low efficiency causes battery temperature to be climbed to protection temperature.
In the related technology, the prior art is usually natural heat dissipation, or passes through bottom air inlet, at battery pack upper cover button
Air outlet heat dissipation, then casing internal is led, wind path channel is long, and battery radiating efficiency is poor, leads to the work of electric hand tool
Make poor reliability.
Utility model content
The utility model aims to solve at least one of the technical problems existing in the prior art.For this purpose, the utility model
One purpose is to propose a kind of electric hand tool, which can be improved the heat dissipation speed of electric hand tool
Rate can promote the radiating efficiency to battery pack.
Electric hand tool according to the present utility model includes: shell, motor, fan and battery pack, the shell setting
There are the first air inlet and the first air outlet；The motor is arranged in the enclosure interior；Fan described in the motor driven, it is described
Fan makes the cooling air of the hull outside flow to first air outlet after first air inlet；The battery pack
It is removably coupled to the shell, the battery pack includes: terminal accommodating portion, and the terminal accommodating portion contains terminal, institute
Terminal being electrically connected for realizing the electric hand tool and the battery pack is stated, is provided with ventilation in the terminal accommodating portion
Gap, the ventilation gap are connected with first air inlet, wherein when the battery pack is coupled to the shell, institute
It states the first air inlet and is located at the ventilation gap adjacent to the oblique upper of the motor side.
Electric hand tool according to the present utility model is cooperated by shell, motor, fan and battery pack, be can be improved
The rate of heat dispation of electric hand tool can promote the radiating efficiency to battery pack, thereby may be ensured that the work of battery pack can
By property, and then it can guarantee the functional reliability of electric hand tool.
In some examples of the utility model, the shell includes: hand-held part and battery pack mounting base, the battery pack
Mounting base is located at the lower section of the hand-held part, and first air inlet is set at the battery pack mounting base, the battery pack
Removably it is coupled to the battery pack mounting base.
In some examples of the utility model, the battery pack mounting base includes: roof and the first side wall, and described first
Side wall is connected to the side of the neighbouring motor of the roof, and first air inlet is set on the first side wall.
In some examples of the utility model, the shell is additionally provided with the second air inlet；The electric hand tool
Further include: circuit board, the circuit board are located in the battery pack mounting base, and cooling air is followed by second air inlet
Mouth, the circuit board, first air outlet form the first heat dissipation channel.
In some examples of the utility model, the separate motor of hand-held part lower part is arranged in second air inlet
Edge.
In some examples of the utility model, the battery pack further include: the second air outlet, second air outlet position
In the lower section of the circuit board, cooling air is followed by second air outlet, the circuit board, the first outlet air degree of lip-rounding
At the second heat dissipation channel.
In some examples of the utility model, air guide structure is provided between the fan and motor.
In some examples of the utility model, the motor has third air inlet, the third air inlet, described the
One air outlet is connected to.
In some examples of the utility model, the air guide structure is air-ducting ring, and the motor includes motor shaft, described
Air-ducting ring is arranged around the motor shaft.
Detailed description of the invention
The above-mentioned and/or additional aspect and advantage of the utility model from the description of the embodiment in conjunction with the following figures will
Become obvious and be readily appreciated that, in which:
Fig. 1 is the cross-sectional view according to the electric hand tool of the utility model embodiment；
Fig. 2 is the enlarged drawing in Fig. 1 at A；
Fig. 3 is the schematic diagram according to the electric hand tool of the utility model embodiment；
Fig. 4 is the schematic diagram according to another angle of the electric hand tool of the utility model embodiment；
Fig. 5 is the schematic diagram according to the battery pack of the electric hand tool of the utility model embodiment.
Appended drawing reference:
Electric hand tool 10；
Shell 1；First air inlet 11；First air outlet 12；Hand-held part 13；
Battery pack mounting base 14；Roof 141；The first side wall 142；
Second air inlet 15；
Motor 2；Motor shaft 21；Third air inlet 22；
Battery pack 3；Terminal accommodating portion 31；Ventilation gap 32；Second air outlet 33；Terminal 34；
Circuit board 4；First heat dissipation channel 5；Second heat dissipation channel 6；Air guide structure 7；Fan 8；4th air inlet 9.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model
Limitation.
Below with reference to Fig. 1-Fig. 5 description according to the electric hand tool 10 of the utility model embodiment.
It as Figure 1-Figure 5, include: shell 1, motor 2, wind according to the electric hand tool of the utility model embodiment 10
Fan 8 and battery pack 3.The first air inlet 11 and the first air outlet 12 has can be set in shell 2, and motor 2 can be set in shell 1
It is internal.
In some embodiments of the utility model, as shown in figure 4, motor 2 can have third air inlet 22, third into
Air port 22 is connected to the first air inlet 11, and third air inlet 22 is connected to the first air outlet 12, in this way setting can make first into
The cooling air that air port 11 is flowed out flows into the inside of motor 2 from third air inlet 22, and cooling air completes heat exchange in motor 2
Afterwards, cooling air can flow out electric hand tool 10 from the first air outlet 12.
When electric hand tool 10 works, 2 driving fan 8 of motor work, fan 8 can make the cooling outside shell 1
Air flows to third air inlet 22 after the first air inlet 11, and then cooling air can flow to first from third air inlet 22 and go out
Air port 12.
Battery pack 3 is removably coupled on shell 1, and battery pack 3 may include: terminal accommodating portion 31, terminal accommodating portion
31 contain terminal 34, and terminal 34 is electrically connected for realizing electric hand tool 10 and battery pack 3, can in terminal accommodating portion 31
To be provided with ventilation gap 32, ventilation gap 32 between electrode slice and terminal accommodating portion 31, ventilation gap 32 and first into
Air port 11 is connected, wherein when battery pack 3 is coupled on shell 1, the first air inlet 11 is located at ventilation gap 32 adjacent to motor
The oblique upper of 2 sides.
When electric hand tool 10 is started to work, cooling air enters battery pack 3 from the air inlet of 3 bottom of battery pack,
Then cooling air can flow to the first air inlet 11 from ventilation gap 32, and then cooling air flows to third from the first air inlet 11
Air inlet 22, then cooling air can flow into motor 2 from third air inlet 22, and final cooling air can be from the first air outlet 12
Flow out shell 1.
Wherein, due between the first air inlet 11 and third air inlet 22 path it is short, setting in this way can shorten cooling sky
The flow path of gas can make cooling air preferably carry out heat exchange with electric hand tool 10, and then can be improved hand-held
The rate of heat dispation of electric tool 10, also, cooling air can also be made preferably to carry out heat exchange to battery pack 3, it can be promoted
It to the radiating efficiency of battery pack 3, prevents the temperature of battery pack 3 at work excessively high, thereby may be ensured that the work of battery pack 3 can
By property, and then it can guarantee the functional reliability of electric hand tool 10, it is also possible to promote making for electric hand tool 10
Use safety.
Cooperated as a result, by shell 1, motor 2 and battery pack 3, can be improved the rate of heat dispation of electric hand tool 10, it can
To promote the radiating efficiency to battery pack 3, the functional reliability of battery pack 3 thereby may be ensured that, and then can guarantee hand-held electricity
The functional reliability of power driven tools 10.
In some embodiments of the utility model, as Figure 1-Figure 5, shell 1 may include: hand-held part 13 and battery
Packet mounting base 14, battery pack mounting base 14 are located at the lower section of hand-held part 13, and the first air inlet 11 is set to battery pack mounting base 14
Place, battery pack 3 are removably coupled to battery pack mounting base 14, and the disassembly that can facilitate battery pack 3 is arranged such, can be in order to
The charging of battery pack 3, also, when user uses electric hand tool 10, user can with being held by hand-held part 13, so as to
To be easy to use electric hand tool 10.
In some embodiments of the utility model, as depicted in figs. 1 and 2, battery pack mounting base 14 may include: roof
141 and the first side wall 142, the first side wall 142 be connected to the side of the neighbouring motor 2 of roof 141, it should be noted that first
Side wall 142 is connected to the right side of roof 141, and the first air inlet 11 can be set on the first side wall 142, and setting can make in this way
First air inlet 11 shortens at a distance from motor 2, can shorten the flow path of cooling air, further so as to promote hand
Hold the heat dissipation effect of electric tool 10.
In some embodiments of the utility model, as Figure 1-Figure 4, shell 1 is also provided with the second air inlet
15, cooling air can flow into electric hand tool 10 from the second air inlet 15.Electric hand tool 10 can also include: electricity
Road plate 4, circuit board 4 are located in battery pack mounting base 14, and cooling air can be followed by the second air inlet 15, circuit board 4,
One air outlet 11 forms the first heat dissipation channel 5, after cooling air is flowed into shell 1 from the second air inlet 15, cooling air from
First heat dissipation channel 5 flows at third air inlet 22, and then cooling air flows into inside motor 2 from third air inlet 22, cooling
After air carries out heat exchange with motor 2 in 2 inside of motor, cooling air can be arranged in this way from 12 outflow motor 2 of the first air outlet
The heat of circuit board 4 can be made to be carried away by the wind, the temperature of circuit board 4 can be made to reduce, also, when cooling air flows through motor 2
When, the heat of motor 2 can also be taken away, the temperature of motor 2 can be made to reduce, thereby may be ensured that electric hand tool 10 just
Often work.
In some embodiments of the utility model, the second air inlet 15 be can be set in 13 lower part of hand-held part far from electricity
The edge of machine 2, it should be noted that circuit board 4 can be set between the second air inlet 15 and motor 2, the second air inlet
15 can be set in the left side of circuit board 4, and motor 2 can be set on the right side of circuit board 4, when cooling air is from the second air inlet
After 15 flow into shell 1, setting can make the position of the second air inlet 15 more reasonable in this way, can be preferably to circuit board
4 cool down.
In some embodiments of the utility model, as shown in Figure 1-Figure 3, battery pack 3 can also include: the second air outlet
33, the second air outlet 33 is located at the lower section of circuit board 4, and cooling air is followed by the second air outlet 33, the 4th air inlet 9, electricity
Road plate 4, the first air outlet 12 can form the second heat dissipation channel 6.Wherein, when the cooling air in battery pack 3 is from the second outlet air
After 3 outflow of mouth, cooling air can flow to the outside of shell 1 from the second heat dissipation channel 6, and cooling air is cold in flow process
But air can radiate to circuit board 4 and motor 2, so as to promote the radiating efficiency of electric hand tool 10.
In some embodiments of the utility model, as shown in Figure 1, wind-guiding knot can be set between fan 8 and motor 2
Structure 7, air guide structure 7 have guiding role, and cooling air is after the outflow of motor 2, under the action of air guide structure 7, cooling air
It can be directed to the first air outlet 12, setting in this way can be such that cooling air more easily flows at the first air outlet 12, can
To improve the rate of cooling air outflow shell 1.
In some embodiments of the utility model, air guide structure 7 can be air-ducting ring, and motor 2 may include motor shaft
21, air-ducting ring is arranged around motor shaft 21, and the air-ducting ring of such setting can be flowing out cooling air more rapidly from motor 2
It is oriented to the first air outlet 12, the heat exchange efficiency of cooling air Yu electric hand tool 10 can be promoted, so as to promote wind-guiding
The working performance of structure 7.
Wherein, the arrow in Fig. 1 and Fig. 2 indicates the direction and path of wind flow.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are contained at least one embodiment or example of the utility model.In the present specification, to above-mentioned art
The schematic representation of language may not refer to the same embodiment or example.Moreover, description specific features, structure, material or
Person's feature can be combined in any suitable manner in any one or more of the embodiments or examples.
While there has been shown and described that the embodiments of the present invention, it will be understood by those skilled in the art that:
These embodiments can be carried out with a variety of variations, modification, replacement in the case where not departing from the principles of the present invention and objective
And modification, the scope of the utility model are defined by the claims and their equivalents.
Claims (9)
1. a kind of electric hand tool characterized by comprising
Shell, the shell are provided with the first air inlet and the first air outlet；
Motor, the motor are arranged in the enclosure interior；
Fan, fan described in the motor driven, the fan make the cooling air of the hull outside by described first into
First air outlet is flowed to behind air port；
Battery pack, the battery pack are removably coupled to the shell, and the battery pack includes: terminal accommodating portion, the end
Sub- receiving portion contains terminal, and the terminal is electrically connected for realizing the electric hand tool and the battery pack, described
Ventilation gap is provided in terminal accommodating portion, the ventilation gap is connected with first air inlet, wherein when the battery
When packet is coupled to the shell, first air inlet is located at the ventilation gap adjacent to the oblique upper of the motor side.
2. electric hand tool according to claim 1, which is characterized in that the shell includes: hand-held part and battery pack
Mounting base, the battery pack mounting base are located at the lower section of the hand-held part, and first air inlet is set to the battery pack peace
It fills at seat, the battery pack is removably coupled to the battery pack mounting base.
3. electric hand tool according to claim 2, which is characterized in that the battery pack mounting base include: roof and
The first side wall, the first side wall are connected to the side of the neighbouring motor of the roof, and first air inlet is set to
On the first side wall.
4. electric hand tool according to claim 2, which is characterized in that the shell is additionally provided with the second air inlet；
The electric hand tool further include: circuit board, the circuit board are located in the battery pack mounting base, cooling air according to
Secondary second air inlet, the circuit board, first air outlet of flowing through forms the first heat dissipation channel.
5. electric hand tool according to claim 4, which is characterized in that second air inlet is arranged under hand-held part
The edge far from the motor in portion.
6. electric hand tool according to claim 4, which is characterized in that the battery pack further include: the second air outlet,
Second air outlet is located at the lower section of the circuit board, cooling air followed by second air outlet, the circuit board,
First air outlet forms the second heat dissipation channel.
7. electric hand tool according to claim 1, which is characterized in that be provided with wind-guiding between the fan and motor
Structure.
8. electric hand tool according to claim 1, which is characterized in that the motor has third air inlet, described
Third air inlet is connected to first air inlet, first air outlet.
9. electric hand tool according to claim 7, which is characterized in that the air guide structure is air-ducting ring, the electricity
Machine includes motor shaft, and the air-ducting ring is arranged around the motor shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821025595.6U CN208483800U (en) | 2018-06-29 | 2018-06-29 | Electric hand tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821025595.6U CN208483800U (en) | 2018-06-29 | 2018-06-29 | Electric hand tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208483800U true CN208483800U (en) | 2019-02-12 |
Family
ID=65249039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821025595.6U Active CN208483800U (en) | 2018-06-29 | 2018-06-29 | Electric hand tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208483800U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110299746A (en) * | 2019-08-01 | 2019-10-01 | 常州格力博有限公司 | Charging unit |
| CN110600652A (en) * | 2019-10-15 | 2019-12-20 | 江苏铁锚工具有限公司 | Self-absorption heat dissipation cooling battery pack |
| WO2021110078A1 (en) * | 2019-12-06 | 2021-06-10 | 苏州宝时得电动工具有限公司 | Power tool and energy and energy storage apparatus thereof |
| CN113161643A (en) * | 2021-02-18 | 2021-07-23 | 添可智能科技有限公司 | Cleaning device |
| CN113661032A (en) * | 2019-03-25 | 2021-11-16 | 日东工器株式会社 | Battery type electric tool |
| CN113766996A (en) * | 2019-11-25 | 2021-12-07 | 胡斯华纳有限公司 | Hand-held electric power tool with air leakage in slot between battery and battery compartment |
| WO2022252423A1 (en) * | 2021-06-02 | 2022-12-08 | 锐奇控股股份有限公司 | Handheld electric tool |
-
2018
- 2018-06-29 CN CN201821025595.6U patent/CN208483800U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113661032A (en) * | 2019-03-25 | 2021-11-16 | 日东工器株式会社 | Battery type electric tool |
| CN110299746A (en) * | 2019-08-01 | 2019-10-01 | 常州格力博有限公司 | Charging unit |
| CN110600652A (en) * | 2019-10-15 | 2019-12-20 | 江苏铁锚工具有限公司 | Self-absorption heat dissipation cooling battery pack |
| CN113766996A (en) * | 2019-11-25 | 2021-12-07 | 胡斯华纳有限公司 | Hand-held electric power tool with air leakage in slot between battery and battery compartment |
| WO2021110078A1 (en) * | 2019-12-06 | 2021-06-10 | 苏州宝时得电动工具有限公司 | Power tool and energy and energy storage apparatus thereof |
| CN113161643A (en) * | 2021-02-18 | 2021-07-23 | 添可智能科技有限公司 | Cleaning device |
| CN113161643B (en) * | 2021-02-18 | 2023-08-01 | 添可智能科技有限公司 | Cleaning apparatus |
| WO2022252423A1 (en) * | 2021-06-02 | 2022-12-08 | 锐奇控股股份有限公司 | Handheld electric tool |
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