CN220575831U - Electric tool with heat radiation structure - Google Patents
Electric tool with heat radiation structure Download PDFInfo
- Publication number
- CN220575831U CN220575831U CN202321770153.5U CN202321770153U CN220575831U CN 220575831 U CN220575831 U CN 220575831U CN 202321770153 U CN202321770153 U CN 202321770153U CN 220575831 U CN220575831 U CN 220575831U
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- Prior art keywords
- air
- heat dissipation
- battery compartment
- air inlet
- motor
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- 230000005855 radiation Effects 0.000 title claims description 9
- 230000017525 heat dissipation Effects 0.000 claims abstract description 69
- 238000005086 pumping Methods 0.000 claims abstract description 5
- 238000009423 ventilation Methods 0.000 claims description 21
- 238000007664 blowing Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 19
- 238000001816 cooling Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000000191 radiation effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Secondary Cells (AREA)
Abstract
The utility model discloses an electric tool with a heat dissipation structure, which comprises a casing, an inner cavity arranged in the casing, a battery compartment and a controller, wherein a power supply battery is connected in the battery compartment, a heat dissipation fan for pumping air in the inner cavity out of the inner cavity is arranged in the inner cavity, a first air inlet communicated with the outside of the casing and a first air vent communicated with the inner cavity are arranged on the controller, a second air vent communicated with the inner cavity is arranged on the inner wall of the battery compartment, an air inlet channel is arranged between the power supply battery and the inner wall of the battery compartment, and the air inlet channel is communicated with the second air vent and the outside of the battery compartment. The scheme can solve the heat dissipation problem of the power supply battery.
Description
Technical Field
The utility model relates to the technical field of electric tools, in particular to an electric tool with a heat dissipation structure.
Background
The electric tool can generate heat in the use process, and particularly, some electric tools with compact structures, such as an electric saw, need to dissipate the heat generated in the use process of the electric tool; however, the existing electric tool has unreasonable heat dissipation structure, heat generated in the use process of the electric tool cannot be well discharged, the heat can be accumulated in the electric tool, components such as a motor in the electric tool can be burnt out when the electric tool works at high temperature, the service life of the electric tool is further influenced and shortened, and even a fire disaster caused by short circuit can be caused.
Some electric tools improve the heat dissipation structure, strengthen the radiating effect of the heat dissipation structure of the electric tool, but some electric tools use an integrated mobile power supply, the electric tools comprise power supply batteries, and the power supply batteries can generate a large amount of heat in the long-time use process, and the power supply batteries with a large amount of heat are stacked, so that the temperature of the power supply batteries is too high, the possibility of damaging the power supply batteries is provided, the use time of a single power supply battery of the electric tool is shortened, but the existing electric tools do not dissipate heat or have poor radiating effect on the power supply batteries.
Disclosure of Invention
The utility model provides an electric tool with a heat dissipation structure, which solves the heat dissipation problem of a power supply battery in order to overcome the defect that the electric tool in the prior art does not dissipate heat of the power supply battery or has poor heat dissipation effect.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides an electric tool with heat radiation structure, includes the casing, sets up the inner chamber in the casing to and battery compartment and the controller of setting on the casing, battery compartment in-connection has the power supply battery, be equipped with in the inner chamber and be used for taking out the outer radiator fan of inner chamber with the air in the inner chamber, be equipped with on the controller with the outside intercommunication first air intake of casing and with the first vent of inner chamber intercommunication, be equipped with on the inner wall of battery compartment with the second vent of inner chamber intercommunication, the power supply battery with be equipped with the air inlet passageway between the inner wall of battery compartment, the air inlet passageway intercommunication the second vent with the battery compartment is outside.
In the technical scheme, the cooling fan pumps the air in the inner cavity to the outside of the inner cavity, negative pressure is formed in the inner cavity, the first ventilation opening communicated with the inner cavity is influenced by the negative pressure to suck the air in the controller, meanwhile, the first air inlet communicated with the first ventilation opening sucks the external air, the external air flows through the controller to take away the heat of the controller, and the external air is sucked into the inner cavity through the first ventilation opening; in addition, the second air vent communicated with the inner cavity is influenced by negative pressure to suck air in the battery compartment, and meanwhile, the air inlet channel communicated with the second air vent sucks outside air which flows through the battery compartment to take away heat of the battery and is sucked into the inner cavity through the second air vent; two air flows of the first ventilation opening and the second ventilation opening are sucked into the inner cavity to carry heat in the inner cavity, and are discharged out of the inner cavity through the cooling fan. Among the above-mentioned technical scheme, outside air gets into in the controller through first air intake at first and gets into in the battery compartment through the air inlet passageway, dispels the heat in the controller, in the battery compartment, and in the inner chamber just gets into at second, outside air gets into controller, in the battery compartment at first, outside air directly dispels the heat to controller, battery compartment, and the radiating wind of this moment is because not absorbing heat is the cooling wind, better to the radiating effect of controller and power supply battery. In addition, external air is sucked through the first air inlet and the air inlet channel respectively, the air suction quantity is increased, the heat radiation air quantity entering the inner cavity is increased, and the heat radiation effect on components in the inner cavity is better. In addition, through the first vent and the second vent with the inner chamber intercommunication, radiator fan sets up in the inner chamber, can dispel the heat to controller, battery and inner chamber simultaneously, only can realize the heat dissipation simultaneously to a plurality of positions through a radiator fan, reduces radiator fan's quantity, reduce cost. In addition, the outside air flows through the battery compartment, the controller and the inner cavity, the air flowing area is wider, the contact area between the inside of the shell and the air is larger, the heat dissipation area is larger, more heat is taken away by the air, and the heat dissipation effect is better.
Preferably, a motor is fixed in the inner cavity, one end of the motor is provided with a motor air inlet communicated with the inside of the motor and the inner cavity, and the cooling fan is arranged at the other end of the motor and is used for pumping out air in the motor and blowing out of the inner cavity.
Among the above-mentioned technical scheme, with the motor setting in the inner chamber, the fan setting is at the other end of motor, when radiator fan operates, can at first take out the inside air of motor, and then drive the air discharge cavity in the cavity, receive cavity negative pressure influence, external air gets into through first vent and air inlet channel, the air is dispelled the heat to it through battery compartment and controller earlier, the radiating effect to battery package and controller is better this moment, and the motor calorific capacity is big required radiating air volume also big, the air simultaneously gets into the inner chamber from first vent and second vent, the radiating air volume in the inner chamber is biggest, can give the motor heat dissipation effectively, let the heat dissipation process more reasonable, make electric tool during operation state is more stable.
Preferably, the first air inlet, the controller and the first air vent form a first air flow channel; the air inlet channel and the second air inlet opening form a second air flow channel, and the first air flow channel and the second air flow channel are converged at the air inlet of the motor.
In the above technical scheme, the air flowing through the first air flow channel can radiate the controller, the air flowing through the second air flow channel can radiate the battery in the battery compartment, and the first air flow channel and the second air flow channel are converged at the air inlet of the motor, so that the radiating air quantity entering the inner cavity is larger than that of a single channel, and the radiating effect of components in the inner cavity is better.
Preferably, the controller comprises a circuit board, a heat dissipation plate is arranged on the outer side of the circuit board, and the first air inlet is aligned to the heat dissipation plate.
According to the technical scheme, the heat generated by the circuit board is concentrated on the heat dissipation plate by arranging the heat dissipation plate on the outer side of the circuit board, and the first air inlet is aligned to the heat dissipation plate, so that gas can directly contact with the heat dissipation plate to take away the heat on the heat dissipation plate; meanwhile, the heat dissipation plate is arranged and can also shield electrical components such as a controller, so that water drops are prevented from splashing onto the electrical components such as the controller from the first air inlet when the electric tool is used.
Preferably, a heat radiating fin is provided on the outer side of the heat radiating plate.
In the above technical scheme, radiating fin is used for increasing the area of contact of heating panel and air, through setting up radiating fin, increases the area of contact of heating panel and air for air and heating panel contact is more abundant, and more heat can be taken away to the air, increases the radiating effect.
Preferably, the second ventilation opening is disposed at a lower half of the battery compartment.
In the above technical scheme, the second ventilation opening is arranged at the lower half part of the battery compartment, and the outside air entering through the air inlet channel can fully cover the battery compartment, so that more heat can be taken away by the air, and the heat dissipation effect is better.
Preferably, the second ventilation openings are formed in the inner walls of the battery bin in all directions.
In the above technical scheme, all be equipped with on the inner wall of each direction of battery compartment the second ventilation opening for all be carrying out the exchange of air around the battery compartment, make the heat dissipation of battery compartment more abundant.
Preferably, the power supply battery is detachably connected with the battery compartment.
In the technical scheme, the power supply battery is detachably connected with the battery compartment, so that the battery can be replaced more conveniently.
The beneficial effects of the utility model are as follows: 1) External air firstly enters the controller through the first air inlet and enters the battery compartment through the air inlet channel to dissipate heat in the controller and the battery compartment, and secondly enters the inner cavity, the external air firstly enters the controller and the battery compartment, the external air directly dissipates heat in the controller and the battery compartment, and the heat dissipation wind at the moment is cooling wind because the heat is not absorbed, so that the heat dissipation effect on the controller and the power supply battery is better. 2) The motor is arranged in the inner cavity, the fan is arranged at the other end of the motor, when the cooling fan works, air inside the motor can be pumped out firstly, then air in the cavity is driven to be discharged out of the cavity, the air is affected by negative pressure of the cavity, external air enters through the first ventilation opening and the air inlet channel, the air firstly dissipates heat through the battery compartment and the controller, the heat dissipation air is cold air at the moment, the heat dissipation effect of the battery pack and the controller is better, and the air finally passes through the motor, so that the heat dissipation process is more reasonable, and the state of the electric tool is more stable when in work.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the structure of the air outlet of the present utility model;
FIG. 3 is a cross-sectional view of the present utility model;
FIG. 4 is a schematic view of the battery compartment structure of the present utility model;
FIG. 5 is an interior display view of the control housing of the present utility model;
FIG. 6 is a schematic diagram of a heat dissipating fan according to the present utility model;
fig. 7 is a schematic diagram of the structure of the air inlet of the motor of the utility model.
In the figure: 1. a housing; 2. an inner cavity; 3. a battery compartment; 4. a controller; 4.1, a circuit board 4;4.2, a control shell; 5. a first air inlet; 6. a first vent; 7. an air inlet channel; 8. a second vent; 9. a heat radiation fan; 10. a motor; 11. an air inlet of the motor; 12. a heat dissipation plate; 13. a heat radiation fin; 14. and an air outlet of the shell.
Detailed Description
The utility model is further described below with reference to the drawings and specific embodiments.
Example 1:
as shown in fig. 1 to 7, an electric tool with a heat dissipation structure comprises a casing 1, an inner cavity 2 arranged in the casing 1, a battery compartment 3 arranged on the casing 1 and a controller 4, wherein a power supply battery is connected in the battery compartment 3, a heat dissipation fan 9 used for pumping air in the inner cavity 2 out of the inner cavity 2 is arranged in the inner cavity 2, a first air inlet 5 communicated with the outside of the casing 1 and a first air outlet 6 communicated with the inner cavity 2 are arranged on the controller 4, a second air inlet 8 communicated with the inner cavity 2 is arranged on the inner wall of the battery compartment 3, an air inlet channel 7 is arranged between the power supply battery and the inner wall of the battery compartment 3, and the air inlet channel 7 is communicated with the second air inlet 8 and the outside of the battery compartment 3.
Firstly, the cooling fan 9 pumps air in the inner cavity 2 out of the inner cavity 2, negative pressure is formed in the inner cavity 2, a first ventilation opening communicated with the inner cavity 2 is influenced by the negative pressure to suck air in the controller 4, meanwhile, a first air inlet 5 communicated with a first ventilation opening 6 sucks outside air, the outside air flows through the controller 4 to take away heat of the controller, and the outside air is sucked into the inner cavity 2 through the first ventilation opening 6; in addition, the second air vent 8 communicated with the inner cavity 2 is influenced by negative pressure to suck air in the battery compartment 3, and meanwhile, the air inlet channel 7 communicated with the second air vent 8 sucks outside air, and the outside air flows through the battery compartment 3 to take away heat of the battery and is sucked into the inner cavity 2 through the second air vent 8; two air streams of the first vent 6 and the second vent 8 are sucked into the inner chamber 2 to carry away heat of the inner chamber 2, and are discharged out of the inner chamber 2 through the heat radiation fan 9.
In this embodiment, the external air firstly enters the controller 4 through the first air inlet 5 and enters the battery compartment 3 through the air inlet channel 7 to dissipate heat in the controller 4 and the battery compartment 3, and secondly enters the inner cavity 2, the external air firstly enters the controller 4 and the battery compartment 3, and the external air directly dissipates heat in the controller 4 and the battery compartment 3, so that the heat dissipation effect of the heat dissipation air at this time is better for the controller and the power supply battery because the heat is not absorbed by the heat dissipation air. In addition, external air is sucked through the first air inlet 5 and the air inlet channel 7 respectively, the air suction quantity is increased, the heat radiation air quantity entering the inner cavity 2 is increased, and the heat radiation effect on components in the inner cavity 2 is better. In addition, through the first vent 6 and the second vent 8 that communicate with the inner chamber, radiator fan 9 sets up in inner chamber 2, can dispel the heat to controller, battery and inner chamber 2 simultaneously, only can realize the heat dissipation simultaneously to a plurality of positions through radiator fan 9, reduces radiator fan 9's quantity, reduce cost. In addition, the outside air flows through the battery compartment 3, the controller 4 and the inner cavity 2, the air flowing area is wider, the contact area between the inside of the shell and the air is larger, the heat dissipation area is larger, the heat taken away by the air is more, and the heat dissipation effect is better.
Specifically, the first air inlet, the controller and the first ventilation opening form a first air flow channel; the air inlet channel and the second air inlet opening form a second air flow channel, and the first air flow channel and the second air flow channel are converged at the air inlet of the motor. In the above technical scheme, the air flowing through the first air flow channel can radiate the controller, the air flowing through the second air flow channel can radiate the battery in the battery compartment, and the first air flow channel and the second air flow channel are converged at the air inlet of the motor, so that the radiating air quantity entering the inner cavity is larger than that of a single channel, and the radiating effect of components in the inner cavity is better.
Specifically, the controller 4 includes a circuit board 4.1, a heat dissipation plate 12 is disposed on the outer side of the circuit board, the first air inlet 5 is aligned with the heat dissipation plate 12, the heat generated by the circuit board is concentrated on the heat dissipation plate 12 by disposing the heat dissipation plate 12 on the outer side of the circuit board, and the first air inlet 5 is aligned with the heat dissipation plate 12, so that gas can directly contact with the heat dissipation plate 12 to take away the heat on the heat dissipation plate 12; the heat dissipation plate 12 is also arranged to shield electrical components such as a controller, so that water drops are prevented from splashing from the first air inlet 5 to the electrical components such as the controller when the electric tool is used. The controller 4 further comprises a control housing 4.2, and the circuit board 4.1 and the heat dissipation plate 12 are arranged in the control housing 4.2.
The heat dissipating plate 12 is a high heat dissipating rate heat dissipating member.
More specifically, the outer side of the heat dissipation plate 12 is provided with heat dissipation fins 13; in this setting radiating fin 13 is arranged in increasing the area of contact of heating panel 12 with the air, through setting up radiating fin 13, increases the area of contact of heating panel 12 with the air for air and heating panel 12 contact is more abundant, and more heat can be taken away to the air, increases the radiating effect.
In order to further make the heat dissipation process more reasonable, a motor 10 is fixed in the inner cavity 2, one end of the motor 10 is provided with a motor air inlet 11 which is communicated with the interior of the motor 10 and the inner cavity 2, and the heat dissipation fan 9 is arranged on the other end of the motor 10 and is used for pumping out air in the motor 10 and blowing out of the inner cavity 2; this setting sets up motor 10 in chamber 2, the fan setting is at motor 10's the other end, when radiator fan 9 operates, can at first take out the inside air of motor 10, and then drive the air discharge cavity in the cavity, receive cavity negative pressure influence, external air gets into through first air intake 5 and air inlet channel 7, the air is dispelled the heat to it through battery compartment 3 and controller earlier, the radiating wind is cold wind this moment, the radiating effect to battery package and controller is better, and the required radiating air volume that motor 10 calorific capacity is big is also big, the air enters the inner chamber together from first vent 6 and second vent 8 this moment, the radiating air volume in the inner chamber is biggest, can dispel the heat for motor 10 effectively, let the heat dissipation process more reasonable, make electric tool during operation state is more stable.
It should be noted that, the housing 1 is provided with a housing air outlet 14 at a position opposite to the cooling fan 9, and air extracted by the cooling fan 9 is discharged from the housing air outlet 14 to the outside of the inner cavity 2, so that the air takes heat away from the electric tool, thereby realizing heat dissipation of the electric tool.
Specifically, the heat dissipation fan 9 is connected with the motor 10, and the motor 10 provides power to drive the heat dissipation fan 9 to rotate, so that the heat dissipation fan 9 can extract air; this setting is connected by motor 10 through radiator fan 9 and motor 10 and is driven radiator fan 9 rotation by motor 10 power, and radiator fan 9 does not need extra motor 10, need not to install radiator fan 9 additional, effectively guarantees manufacturing cost and use cost, still can not influence battery duration, and a radiator fan 9 just can dispel the heat to battery package, controller and motor 10 simultaneously, and is more efficient.
In order to further enhance the heat dissipation effect, the second ventilation opening 8 is arranged at the lower half part of the battery compartment 3; this setting is in second ventilation opening 8 sets up the lower half of battery compartment 3, and the external air that gets into through air inlet channel 7 can cover battery compartment 3 more fully for more heat can be taken away to the air, and the radiating effect is better.
In order to further enhance the heat dissipation effect, further, the inner walls of the battery compartment 3 in all directions are provided with the second ventilation openings 8; in this setting, all be equipped with on the inner wall of battery compartment 3 each direction second ventilation opening 8 for all be carrying out the exchange of air around the battery compartment 3, make the heat dissipation of battery compartment 3 more abundant.
In order to enhance the user experience when using the electric tool, the inner walls of the battery compartment 3 in all directions are provided with the second ventilation openings 8; in this setting the power supply battery with the battery compartment 3 can dismantle the connection, can more conveniently change the battery.
Specifically, the power supply battery is connected with the battery compartment 3 through screws; it will be appreciated that in another embodiment, the power supply battery is snapped to the battery compartment 3.
The foregoing embodiments are provided for further explanation of the present utility model and are not to be construed as limiting the scope of the present utility model, and some insubstantial modifications and variations of the present utility model, which are within the scope of the utility model, will be suggested to those skilled in the art in light of the foregoing teachings.
Claims (8)
1. The utility model provides an electric tool with heat radiation structure, includes the casing, sets up the inner chamber in the casing to and battery compartment and the controller of setting on the casing, the battery compartment in-connection has the power supply battery, be equipped with in the inner chamber and be used for taking out the outer radiator fan of inner chamber with the air in the inner chamber, characterized by, be equipped with on the controller with the outside first air intake of intercommunication of casing and with the first vent of inner chamber intercommunication, be equipped with on the inner wall of battery compartment with the second vent of inner chamber intercommunication, the power supply battery with be equipped with the air inlet passageway between the inner wall of battery compartment, the air inlet passageway intercommunication the second vent with the battery compartment is outside.
2. The electric tool with heat dissipation structure as set forth in claim 1, wherein a motor is fixed in the inner cavity, one end of the motor is provided with a motor air inlet communicating the interior of the motor with the inner cavity, and the heat dissipation fan is disposed at the other end of the motor for pumping out air in the motor and blowing out the inner cavity.
3. The power tool with heat dissipation structure according to claim 2, wherein the first air inlet, the controller and the first air vent form a first air flow channel; the air inlet channel and the second air inlet opening form a second air flow channel, and the first air flow channel and the second air flow channel are converged at the air inlet of the motor.
4. The power tool with a heat dissipation structure according to claim 1, wherein the controller comprises a circuit board, a heat dissipation plate is arranged on the outer side of the circuit board, and the first air inlet is aligned with the heat dissipation plate.
5. The power tool with a heat dissipating structure according to claim 4, wherein the heat dissipating plate is provided with heat dissipating fins on an outer side thereof.
6. The power tool with a heat dissipation structure as recited in any one of claims 1 to 5, wherein the second ventilation opening is provided in a lower half of the battery compartment.
7. The electric tool with heat dissipation structure as set forth in any one of claims 1 to 5, wherein the second ventilation openings are provided on the inner wall of the battery compartment in each direction.
8. The power tool with heat dissipation structure as defined in any one of claims 1 to 5, wherein the power supply battery is detachably connected to the battery compartment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321770153.5U CN220575831U (en) | 2023-07-06 | 2023-07-06 | Electric tool with heat radiation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321770153.5U CN220575831U (en) | 2023-07-06 | 2023-07-06 | Electric tool with heat radiation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220575831U true CN220575831U (en) | 2024-03-12 |
Family
ID=90118693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321770153.5U Active CN220575831U (en) | 2023-07-06 | 2023-07-06 | Electric tool with heat radiation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220575831U (en) |
-
2023
- 2023-07-06 CN CN202321770153.5U patent/CN220575831U/en active Active
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| GR01 | Patent grant |