CN221129928U - Efficient heat dissipation power handle - Google Patents
Efficient heat dissipation power handle Download PDFInfo
- Publication number
- CN221129928U CN221129928U CN202322376478.1U CN202322376478U CN221129928U CN 221129928 U CN221129928 U CN 221129928U CN 202322376478 U CN202322376478 U CN 202322376478U CN 221129928 U CN221129928 U CN 221129928U
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- heat dissipation
- shell
- motor
- power
- high efficiency
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 68
- 230000005540 biological transmission Effects 0.000 claims abstract description 19
- 238000001816 cooling Methods 0.000 claims description 12
- 238000009825 accumulation Methods 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses a power handle capable of efficiently radiating, wherein a power part is provided with an outer shell, a motor, a radiating fan and a radiating shell; the side wall of the heat dissipation shell is provided with one or more air channels, and the corresponding position of the outer shell is provided with a first heat dissipation hole and a second heat dissipation hole, so that a heat dissipation air path which is completely covered on the surface of the motor for heat exchange and unidirectional walking is formed. The power handle provided by the utility model is designed based on a compact mechanical structure, provides a more efficient heat dissipation design without increasing the diameter of a product, completely covers the side surface and the front end of the motor by air flow, and can prevent the transmission gear from generating excessive heat accumulation.
Description
Technical Field
The utility model relates to the field of medical instruments, in particular to a power handle capable of efficiently radiating heat.
Background
The medical operation power handle is mainly applied to operation scenes such as spinal surgery, orthopaedics and neurosurgery, and the like, and the functions of polishing, planing, boring and the like are performed by clamping different working heads by utilizing a high-speed motor to drive a rotary chuck. The power handle often comprises a power part with a motor inside and a clamping part for assembling the working head, and the power part and the clamping part are connected through a transmission mechanism such as a gear.
The existing product can provide a high-speed motor with at least two tens of thousands of revolutions for realizing the functions, so that a series of problems such as noise, heat dissipation, vibration and the like occur in the product. Since the surgical instruments in the art need to be compact to reduce the volume as much as possible, and to facilitate the operation of the user, how to improve the heat dissipation performance more efficiently is a key problem to be solved in the art.
Disclosure of utility model
The utility model aims to: the utility model aims to provide a high-efficiency heat dissipation power handle based on a compact structural design.
The technical scheme is as follows: in order to achieve the above object, the invention provides a power handle with high efficiency heat dissipation, comprising a power part and a clamping part, wherein a transmission gear is respectively arranged between the power part and the clamping part, and the power part comprises an outer shell, a motor arranged in the outer shell, a heat dissipation fan arranged on an output shaft of the motor, and a heat dissipation shell arranged on the periphery of the fan; the side wall of the heat dissipation shell is provided with one or more air channels, and the outer shell at least comprises a first heat dissipation hole corresponding to the position of the air channel.
The power handle provided by the utility model is mainly used for reducing the heat emitted by the power part, and particularly, the heat of the high-speed motor of the power part is subjected to heat exchange with the atmosphere in an air flow mode. Therefore, the motor spindle is directly provided with the cooling fan, the product diameter is not increased while the cooling characteristic is increased, and the use convenience is ensured. The air duct corresponds to the first radiating hole, so that internal heat can be timely dissipated through air flow.
Further, in order to improve heat dissipation efficiency, the outer shell is further provided with a plurality of second heat dissipation holes, and the second heat dissipation holes correspond to one end, away from the output shaft, of the motor; and a heat dissipation gap is arranged between the outer shell and the motor. The second radiating holes and the radiating gaps are arranged, so that air flow enters from the second radiating holes, exchanges heat with the surface of the motor in the radiating gaps, and is discharged from the first radiating holes.
As a further optimization of the utility model, a plurality of air channels are distributed in a central symmetry manner and are arranged along the radial direction of the heat dissipation shell.
Still further, the heat dissipation case should have a certain length so that the air duct has a sufficient width for air flow caused by high-speed rotation of the heat dissipation fan, and more preferably, the pressure difference of the heat dissipation gap can be further increased to increase heat dissipation efficiency. On the basis of the cooling fan, the air duct is positioned on one exhaust side of the cooling fan so as to ensure cooling efficiency.
As a preferred embodiment of the present utility model, the end face of the heat dissipation housing is further provided with a sleeve portion capable of accommodating a power portion transmission gear, the power portion transmission gear is in pin connection with the motor output shaft, and the diameter of the power portion transmission gear is smaller than the diameter of an inner cavity of the sleeve portion.
Although the heat generated here is far less than the motor, the heat accumulated by long-time high-speed rotation cannot be ignored if maintained in a completely closed space, considering that the unavoidable friction of the transmission gear also generates a certain amount of heat. Therefore, the inner cavity of the sleeve part is communicated with the air duct, and the excessive temperature is avoided under the air flow stirring of the cooling fan.
The design of the sleeve part with the outer diameter not exceeding the outer diameter of the heat dissipation shell or the outer shell is beneficial to the rapid assembly of the power part and the clamping part. The mutual engagement of the respective transmission gears can be achieved by inserting the sleeve portions into the clamping portions.
Further, the outer wall of the sleeve part is provided with a plurality of rubber rings, so that on one hand, the sleeve part has damping and shock absorption effects, and on the other hand, the tightness between the power part and the clamping part is improved, so that more efficient heat dissipation is provided.
Further, the power part further comprises a rear shell for fixing the motor, and the outer shell is in threaded connection with the rear shell.
Further, the heat dissipation shell is fixed with the front end face of the motor and is jointly accommodated in the inner cavity of the outer shell.
The beneficial effects are that: the power handle provided by the utility model is designed based on a compact mechanical structure, provides a more efficient heat dissipation design without increasing the diameter of a product, completely covers the side surface and the front end of the motor by air flow, and can prevent the transmission gear from generating excessive heat accumulation.
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 power unit according to embodiment 1;
FIG. 3 is a schematic longitudinal cross-sectional view of FIG. 2;
FIG. 4 is a schematic perspective view of the power unit of example 1 after the power unit is separated from the outer housing and the heat dissipation housing;
Fig. 5 is a schematic perspective view of the heat dissipating housing and the heat dissipating fan when assembled.
Detailed Description
The utility model will be further described with reference to the drawings and specific examples.
Example 1
As shown in fig. 1, the present embodiment provides a power handle with efficient heat dissipation, which includes a power portion and a clamping portion, and the power portion and the clamping portion may be combined into a whole. The clamping part comprises a shell, a clamping part transmission gear and a clamping mechanism for transmission of the clamping part, wherein the clamping mechanism is assembled with a grinding head.
As further shown in fig. 2 and 3, the power unit includes an outer housing 1, a rear housing 2, a motor 3, a heat dissipation fan 4, and a heat dissipation housing 5.
The rear shell 2 is fixed with one end of the motor 3, the surface is provided with external threads, a cylindrical structural body is formed by connecting the external threads with the outer shell 1, a cooling fan 4 is arranged on an output shaft 6 of the motor 3, and the distal end of the output shaft 6 is fixed with a power part transmission gear 7 through a pin shaft. The heat dissipation shell 5 is an annular structure with a certain wall thickness, is positioned on the periphery of the heat dissipation fan 4 and is fixed with the front end face of the motor 3 through bolts. In the present embodiment, a part of the heat dissipation case 5 is accommodated in the inner cavity of the outer case 1. The front end face of the outer housing 1 has an opening while forming a stop collar of reduced diameter. After the outer shell 1 and the rear shell 2 are assembled, the limiting ring is abutted against the outer edge of the front end face of the heat dissipation shell 5.
As further shown in fig. 4 and 5, three air channels 8 are provided on the side wall of the heat dissipation housing 5, and penetrate through the side wall of the heat dissipation housing along the radial direction. Each air duct 8 corresponds to an arc of 70-90 degrees and is distributed in a central symmetry manner relative to the output shaft 6. Three air passages 8 are distributed on the exhaust side of the cooling fan 4 in a vertical plane. Screw holes 9 are distributed at the part outside the air duct of the heat dissipation shell and are used for being fixed on the front end face of the motor 3 through bolts.
As other alternative embodiments, the number, shape, and size of the air ducts may be varied adaptively without departing from the principles of the present utility model. The air duct of the embodiment extends in the radial direction, and on the basis of the air duct, a certain inclination angle can be given to the extending direction.
The outer shell 1 is provided with a plurality of first heat dissipation holes 10 and a plurality of second heat dissipation holes 11 at the front end and the rear end respectively, the positions of the first heat dissipation holes 10 just correspond to the positions of the air channels 8, the positions of the second heat dissipation holes 11 correspond to the fixed ends of the motors 3, and the inner diameter of the outer shell 1 is larger than the outer diameter of the motors 3, so that a heat dissipation gap 12 is formed between the outer shell 1 and the motors 3. When the motor 3 rotates, the heat dissipation fan 4 rotates along with the rotation, the air in the heat dissipation gap 12 continuously exchanges heat with the surface of the motor 3, and is discharged to the atmosphere from the air inlet end to the air outlet end of the heat dissipation fan 4 through the air duct 8 and the first heat dissipation holes 10, and the second heat dissipation holes 11 supplement the air under the negative pressure effect of the heat dissipation gap 12, so that a heat dissipation air path which is completely covered on the surface of the motor 3 for heat exchange and unidirectional running is formed.
Example 2
As an alternative to the utility model, the end face of the heat dissipating housing 5 is further provided with a sleeve portion 13 for accommodating the power transmitting gear 7, in addition to the previous embodiment. The outer diameter of the sleeve part 13 does not exceed the outer diameter of the heat dissipation shell 5 or the outer shell 1, which is beneficial to the rapid assembly of the power part and the clamping part. The outer wall of the sleeve part 13 is provided with two rubber rings 14 at different positions, which play a role in sealing, damping and shock absorption.
The power section transmission gear 7 adopts a non-standard gear, has a shape similar to a cross spline, and has an opposite meshing direction with the clamping section transmission gear. This design reduces the diameter of the driving part as much as possible, reducing the product volume.
The inner cavity of the sleeve part 13 can accommodate the power part transmission gear 7 and is communicated with the inner cavity of the heat dissipation shell and the air duct, and then is communicated with the first heat dissipation hole. Under the air flow stirring action of the cooling fan, the heat possibly generated by the meshing part of the transmission gear can be controlled.
Example 3
As a further optimization of embodiment 1, the optimization of heat dissipation efficiency is achieved by controlling the sizes of the first heat dissipation holes, the second heat dissipation holes, the air duct, the heat dissipation gap between the outer shell and the motor, and the selection of the heat dissipation fan under the corresponding motor rotation speed. The high-speed motor provided by the embodiment is 40000rpm, and the vacuum degree of A-B is maintained by the heat dissipation gap under normal operation.
The foregoing is only a preferred embodiment of the utility model, it being noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the utility model.
Claims (10)
1. The utility model provides a high-efficient radiating power handle, includes power portion and clamping part, be equipped with drive gear between power portion and the clamping part respectively, its characterized in that: the power part comprises an outer shell, a motor arranged in the outer shell, a cooling fan arranged on an output shaft of the motor and a cooling shell arranged on the periphery of the fan; the side wall of the heat dissipation shell is provided with one or more air channels, and the outer shell at least comprises a first heat dissipation hole corresponding to the position of the air channel.
2. The high efficiency heat dissipating power handle of claim 1, wherein: the outer shell is also provided with a plurality of second radiating holes, and the second radiating holes correspond to one end of the motor, which is far away from the output shaft; and a heat dissipation gap is arranged between the outer shell and the motor.
3. A high efficiency heat dissipating power handle as defined in claim 1 or 2, wherein: the number of the air channels is multiple, the air channels are distributed in a central symmetry mode, and the air channels are formed in the radial direction of the heat dissipation shell.
4. A high efficiency heat dissipating power handle in accordance with claim 3, wherein: the air duct is positioned at one side of the exhaust of the cooling fan.
5. The high efficiency heat dissipating power handle of claim 4, wherein: the end face of the heat dissipation shell is also provided with a sleeve part capable of accommodating a power part transmission gear, the power part transmission gear is in pin shaft connection with the motor output shaft, and the diameter of the power part transmission gear is smaller than the diameter of an inner cavity of the sleeve part.
6. The high efficiency heat dissipating power handle of claim 5, wherein: the inner cavity of the sleeve part is communicated with the air duct.
7. The high efficiency heat dissipating power handle of claim 6, wherein: the sleeve portion has an outer diameter not exceeding an outer diameter of the heat dissipation housing or the outer housing.
8. The high efficiency heat dissipating power handle of claim 5, wherein: the outer wall of the sleeve part is provided with a plurality of rubber rings.
9. A high efficiency heat dissipating power handle as defined in any one of claims 4-8, wherein: the power part also comprises a rear shell for fixing the motor, and the outer shell is in threaded connection with the rear shell.
10. The high efficiency heat dissipating power handle of claim 9, wherein: the heat dissipation shell is fixed with the front end face of the motor and is jointly accommodated in the inner cavity of the outer shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322376478.1U CN221129928U (en) | 2023-09-01 | 2023-09-01 | Efficient heat dissipation power handle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322376478.1U CN221129928U (en) | 2023-09-01 | 2023-09-01 | Efficient heat dissipation power handle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221129928U true CN221129928U (en) | 2024-06-14 |
Family
ID=91389485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322376478.1U Active CN221129928U (en) | 2023-09-01 | 2023-09-01 | Efficient heat dissipation power handle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221129928U (en) |
-
2023
- 2023-09-01 CN CN202322376478.1U patent/CN221129928U/en active Active
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