CN213106660U - Reciprocating saw centrifugal fan cooling structure - Google Patents
Reciprocating saw centrifugal fan cooling structure Download PDFInfo
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- CN213106660U CN213106660U CN202021541972.9U CN202021541972U CN213106660U CN 213106660 U CN213106660 U CN 213106660U CN 202021541972 U CN202021541972 U CN 202021541972U CN 213106660 U CN213106660 U CN 213106660U
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Abstract
The utility model discloses a reciprocating saw centrifugal fan cooling structure, include the wind-collecting cover that uses with the centrifugal fan cooperation, the wind-collecting cover is fixed on the inner wall of casing, is equipped with the motor cooling air window that is used for cooling the motor on the casing, a serial communication port, the casing on be equipped with the controller cooling air window that is used for cooling the controller, the controller cooling air window locates the position department of controller, the controller cooling air window accesss to the motor through the wind channel in the casing. The utility model has the advantages of simple structure, the cooling effect is good, alleviates complete machine volume and weight, makes the user handheld operation of being convenient for, the maintenance of also being convenient for simultaneously, extension machine life.
Description
Technical Field
The utility model relates to a reciprocating saw centrifugal fan cooling structure belongs to reciprocating saw technical field.
Background
The larger the power of the large reciprocating saw motor is, the more the heat generated by the controller used with the motor is, and for better heat dissipation of the motor and the controller, the larger axial flow fan or centrifugal fan is used, the wind speed is increased by using the wind collecting cover, the air inlet is enlarged, and the controller is cooled by adopting the independent fan.
However, the above-mentioned means for increasing the heat dissipation effect of the motor and the controller have the following problems, respectively:
1. the larger axial flow fan or centrifugal fan is used, so that the volume of the housing of the reciprocating saw needs to be increased;
2. the wind speed is increased by using the wind collecting cover, the corresponding wind collecting cover is installed corresponding to different fans, if the wind collecting cover is added on the shell, the wind collecting cover is fixed by fasteners (such as bolts and screws), and as the acting area of the wind collecting cover cannot be changed, the hole grooves for fixing by the fasteners are added on the outer side of the wind collecting cover, the volume of the shell is inevitably increased, the cost is increased, and the maintenance is not convenient;
3. the air inlet is made large, but more dust can enter the machine, so that the service life of the machine is shortened;
4. a separate fan is used at the controller to cool the saw, which increases the weight and cost of the entire reciprocating saw.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: under the condition of not increasing the volume of the reciprocating saw machine shell, how to improve the heat dissipation effect of the motor and the controller, thereby saving the economic cost.
In order to solve the technical problem, the technical scheme of the utility model a reciprocating saw centrifugal fan cooling structure is provided, include the air-collecting cover that uses with the centrifugal fan cooperation, the air-collecting cover is fixed on the inner wall of casing, is equipped with the motor cooling air window that is used for cooling the motor on the casing, a serial communication port, the casing on be equipped with the controller cooling air window that is used for cooling the controller, the controller cooling air window locates the position department of controller, the controller cooling air window accesss to the motor through the wind channel in the casing.
Preferably, still include first spiral case and second spiral case with centrifugal fan cooperation use, first spiral case and second spiral case are all fixed on the inner wall of casing, and the wind-collecting cover, first spiral case and second spiral case surround respectively in the three direction of motor, and the second spiral case is located between motor cooling air window and the motor, and makes motor cooling air window and motor intercommunication.
Preferably, the air collecting cover, the first volute and the second volute are all integrated on the casing to form an integrally formed structure.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. a small-diameter centrifugal fan is used, and a volute used together with the centrifugal fan is integrated in a motor shell in order to increase the wind speed;
2. a controller cooling air window is arranged at the position of the controller radiating fin, so that the centrifugal fan cools the motor and also cools the controller, the fan at the position of the controller is omitted, the weight of the reciprocating saw is reduced, the cost is reduced, and the maintenance is convenient;
3. the area of a cooling air window of the motor is reduced, namely the entering of dust is reduced, the service life is prolonged, the negative pressure of the centrifugal fan is increased, the air speed is improved, the cooling effect of the centrifugal fan is exerted to the best, and therefore the whole machine is smaller in size and more beneficial to handheld operation;
4. the air collecting cover, the first volute and the second volute are integrated on the machine shell, so that the fastening structures of the air collecting cover, the first volute, the second volute and the machine shell are reduced, the size of the machine shell can be reduced, and the weight is reduced.
The utility model has the advantages of simple structure, the cooling effect is good, alleviates complete machine volume and weight, makes the user handheld operation of being convenient for, the maintenance of also being convenient for simultaneously, extension machine life.
Drawings
FIG. 1 is a schematic view of the overall structure of a reciprocating saw centrifugal fan cooling structure;
fig. 2 is a schematic diagram of the internal structure of a centrifugal fan cooling structure of a reciprocating saw.
Detailed Description
In order to make the present invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.
The utility model provides a reciprocating saw centrifugal fan cooling structure, as shown in fig. 1, fig. 2, it includes controller cooling air window 2, motor cooling air window 3, centrifugal fan 4, air-collecting housing 5, first spiral case 6, second spiral case 7, and air-collecting housing 5, first spiral case 6, second spiral case 7 are all integrated on casing 9, and be integrated into one piece promptly, cooperation centrifugal fan 4 uses.
The air collecting cover 5, the first volute 6 and the second volute 7 are fixed on the inner wall of the machine shell 9, the air collecting cover 5, the first volute 6 and the second volute 7 surround the motor 8 in three directions respectively, the machine shell 9 is provided with the motor cooling air window 3 for cooling the motor 8, the second volute 7 is arranged between the motor cooling air window 3 and the motor 8, the motor cooling air window 3 is communicated with the motor 8, the machine shell 9 is provided with the controller cooling air window 2 for cooling the controller 1, the controller cooling air window 2 is arranged at the position of a radiating fin of the controller 1, and the controller cooling air window 2 is communicated with the motor 8 through an air channel in the machine shell 9 and is used for cooling the motor 8 together with the motor cooling air window 3. The controller cooling air window 2 and the motor cooling air window 3 form an air inlet, and the motor 8 is arranged between the air inlet and the air outlet.
Through the utility model discloses a device can be when giving motor 8 refrigerated through centrifugal fan 4, can cool off for controller 1 again.
Claims (3)
1. The utility model provides a reciprocating saw centrifugal fan cooling structure, includes air-collecting cover (5) with centrifugal fan (4) cooperation use, air-collecting cover (5) are fixed on the inner wall of casing (9), are equipped with motor cooling air window (3) that are used for cooling motor (8) on casing (9), its characterized in that, casing (9) on be equipped with controller cooling air window (2) that are used for cooling controller (1), the position department of controller (1) is located in controller cooling air window (2), controller cooling air window (2) access to motor (8) through the wind channel in casing (9).
2. The cooling structure of the reciprocating saw centrifugal fan as claimed in claim 1, further comprising a first volute (6) and a second volute (7) used in cooperation with the centrifugal fan (4), wherein the first volute (6) and the second volute (7) are fixed on the inner wall of the casing (9), the wind collecting cover (5), the first volute (6) and the second volute (7) respectively surround the motor (8) in three directions, the second volute (7) is arranged between the motor cooling window (3) and the motor (8), and the motor cooling window (3) is communicated with the motor (8).
3. A centrifugal fan cooling structure for reciprocating saw as defined in claim 2, wherein said air collecting cover (5), said first volute (6) and said second volute (7) are integrated on the casing (9) to form an integral structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021541972.9U CN213106660U (en) | 2020-07-29 | 2020-07-29 | Reciprocating saw centrifugal fan cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021541972.9U CN213106660U (en) | 2020-07-29 | 2020-07-29 | Reciprocating saw centrifugal fan cooling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213106660U true CN213106660U (en) | 2021-05-04 |
Family
ID=75681281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021541972.9U Active CN213106660U (en) | 2020-07-29 | 2020-07-29 | Reciprocating saw centrifugal fan cooling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213106660U (en) |
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2020
- 2020-07-29 CN CN202021541972.9U patent/CN213106660U/en active Active
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