CN215990491U - Outer rotor motor stator heat abstractor based on graphite alkene film - Google Patents
Outer rotor motor stator heat abstractor based on graphite alkene film Download PDFInfo
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- CN215990491U CN215990491U CN202122712081.6U CN202122712081U CN215990491U CN 215990491 U CN215990491 U CN 215990491U CN 202122712081 U CN202122712081 U CN 202122712081U CN 215990491 U CN215990491 U CN 215990491U
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- heat
- heat dissipation
- silica gel
- copper sheet
- graphene film
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- 229910002804 graphite Inorganic materials 0.000 title abstract 3
- 239000010439 graphite Substances 0.000 title abstract 3
- -1 graphite alkene Chemical class 0.000 title abstract 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 5
- 229910021389 graphene Inorganic materials 0.000 abstract 5
- 230000017525 heat dissipation Effects 0.000 abstract 4
- 239000000741 silica gel Substances 0.000 abstract 4
- 229910002027 silica gel Inorganic materials 0.000 abstract 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 3
- 229910052802 copper Inorganic materials 0.000 abstract 3
- 239000010949 copper Substances 0.000 abstract 3
- 238000004804 winding Methods 0.000 abstract 2
- 239000000945 filler Substances 0.000 abstract 1
- 230000002035 prolonged Effects 0.000 abstract 1
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Abstract
The utility model provides an external rotor electric machine stator heat abstractor based on graphite alkene film, belongs to robot joint module technical field, including motor, graphite alkene heat dissipation mechanism, module shell, contact surface, motor support. The graphene heat dissipation mechanism sequentially comprises a heat conduction silica gel layer, a conduction copper sheet and a graphene film from top to bottom; the heat conduction silica gel layer, the conduction copper sheet and the graphene film are all of annular sheet structures. The heat-conducting silica gel layer is tightly attached to the motor stator winding, and part of the heat-conducting silica gel is filled into a gap of the motor stator winding as a filler; contact surface between side surface of outer ring of conductive copper sheet and module shell
Mutually extruding; contact surface of graphene film and motor support
And (6) tightly fitting. The device is small in design and simple in structure, the heat dissipation is more efficient due to the direct contact conduction of the graphene heat dissipation mechanism, the performance of the joint module is effectively improved, and the service life of the joint module is effectively prolonged.
Description
Technical Field
The utility model belongs to the technical field of robot joint modules, relates to a robot joint module motor heat dissipation device, and particularly relates to an outer rotor motor stator heat dissipation device based on a graphene film.
Background
The robot technology has been widely applied to various fields such as automobile equipment, 3C consumer electronics and the like, and the development of national economy is greatly promoted. An important trend in the rapid development of robotics is the modularization of structures, which makes the application and maintenance of robots more convenient, efficient and rapid. The performance of the robot joint is closely related to the overall performance of the robot as a basic component of the robot, and the modularization of the robot joint enables the robot to be easier to use and more convenient. The robot joint module is a basic component of a robot, and is a research focus of the integrated modular development of a robot system.
With the background of weight reduction and size reduction of robots, the reduction in size of joint modules is a trend of necessity. The core part of joint module mainly includes reduction gear and two parts of motor, and the motor part is comparatively serious at joint module operation in-process heating. And the miniaturization of joint module is comparatively strict to the volume requirement of joint module, makes joint module heat dissipation become more difficult after the abundant compression volume. The motor parts are assembled in a narrow space by the modularized joint, and the assembling volume is strictly limited. Although a relatively mature solution is provided for heat dissipation of a motor, for example, water cooling or other solid media are used to conduct heat on a stator winding to a motor housing, and then heat is conducted out by using a heat sink on the housing; or a centrifugal fan is arranged on the outer rotor, and heat dissipation holes are formed in the motor end cover to accelerate heat dissipation. Considering the premise of miniaturization of the joint module, the existing single heat dissipation mature scheme of the outer rotor motor is not suitable for the outer rotor motor on the joint module any more.
At present, the mainstream heat dissipation methods of the joint module mainly include two methods: 1. carry out rational arrangement to the position of module overall structure or module inner part: particularly, a flat way rather than a stacking way is adopted to disperse the heat source, or the hollow structure of the module is reasonably designed to accelerate the heat conduction. The two methods can improve the heat dissipation effect to a certain extent, and the weak heat dissipation effect is obtained at the expense of the module volume, although the module can be made to work normally, the development trend of the miniaturization of the module is violated, and obviously, the method is quite undesirable. 2. A heat dissipation hole is formed in the end cover on the side of the module external rotor motor, and a small fan is installed on one side of the heat dissipation hole through a mounting frame to dissipate heat. The conduction medium of the heat dissipation mode is a medium for indirect contact heat dissipation, the heat conduction efficiency is low, the use is inconvenient, the installation is complicated, and the waterproof effect is poor. At present, documents and patents do not provide a better solution for the problem of heat dissipation of the outer rotor motor of the joint module.
Disclosure of Invention
The utility model aims to provide a graphene film-based stator heat dissipation device for an outer rotor motor, and aims to solve the problems that the heat dissipation mode for the outer rotor motor in a joint module, which is proposed in the background art, is large in occupied size, not direct in heat dissipation, poor in heat dissipation efficiency, complex in installation steps, inconvenient to use and the like.
In order to achieve the purpose, the utility model provides the following specific technical scheme:
a graphene film-based external rotor motor stator heat dissipation device comprises a motor, a graphene heat dissipation mechanism, a module shell, a contact surface and a motor support; the motor comprises a rotor, a stator and a stator winding; the graphene heat dissipation mechanism sequentially comprises a heat conduction silica gel layer, a conduction copper sheet and a graphene film from top to bottom; the contact surface is arranged on the inner surface of the module shell and comprises a contact surface
And contact surface
。
As a preferred embodiment of the present invention, the upper surface of the heat-conducting silica gel layer is tightly attached to the bottom surface of the stator winding of the motor, the lower surface of the heat-conducting silica gel layer is tightly attached to the upper surface of the heat-conducting copper sheet, and a part of the heat-conducting silica gel is filled into the gap of the stator winding as a filler.
As a preferred embodiment of the present invention, the upper surface of the conductive copper sheet is closely attached to the bottom surface of the heat conductive silica gel layer, the lower surface of the conductive copper sheet is closely attached to the graphene film, and the outer side surface of the conductive copper sheet is closely attached to the contact surface
。
As a preferred embodiment of the present invention, the upper surface of the graphene film is tightly attached to the bottom surface of the conductive copper sheet, and the lower surface of the graphene film is tightly attached to the motor bracket and the contact surface
。
As a preferred embodiment of the present invention, the heat conductive silica gel layer, the conductive copper sheet, and the graphene film are all ring-shaped sheets. Preferably, gaps are reserved in the heat conduction silica gel layer, the conduction copper sheet and the graphene film. A notch is reserved through the annular sheet on the heat-conducting silica gel layer, the conducting copper sheet and the graphene film, so that a lead on a motor stator winding can pass through smoothly, and the stability of the graphene heat dissipation mechanism cannot be influenced by motor wiring is ensured.
In a preferred embodiment of the present invention, the graphene thin film has a single-layer structure. The graphene with the single-layer structure has high heat conductivity coefficient and high heat conduction speed, and can accelerate heat conduction.
As a preferred embodiment of the present invention, the thickness of the heat conductive silica gel is slightly larger than the distance between the motor stator winding and the conductive copper sheet. Can utilize heat conduction silica gel layer to have elastic characteristic to fix graphite alkene heat dissipation mechanism to increase graphite alkene heat dissipation mechanism's anti-seismic performance.
As a preferred embodiment of the present invention, the contact surface
Is annular in shape and has contact surface
The surface is rough. The rough surface can better fix the conductive copper sheet, so that the graphene film can be better fixed.
As a preferred embodiment of the present invention, the contact surface
And the motor bracket is positioned on the same horizontal plane.
Compared with the prior art, the utility model has the beneficial effects that:
through the design of the graphene heat dissipation mechanism, the heat dissipation of the joint module outer rotor motor is quicker and more efficient. By adding the graphene heat dissipation mechanism, heat can be conducted in a direct contact mode through solid matters with higher heat conductivity coefficients. Compared with a non-contact conduction heat dissipation mode of directly dissipating heat by using an air medium, the graphene heat dissipation mechanism formed by the heat conduction silica gel, the conduction copper sheet and the graphene film can accelerate heat conduction through the more efficient contact conduction mode, the heat conduction silica gel has good heat conduction and insulation effects, and the graphene film can be well fixed and protected due to the high hardness characteristic of the conduction copper sheet. When the stator winding of the module external rotor motor generates heat, the heat can be quickly conducted to the module shell through the heat-conducting silica gel, the conducting copper sheet and the graphene film, and quick and efficient heat dissipation is realized. In addition, the graphene heat dissipation mechanism provided by the utility model does not need to greatly change the overall structure of the existing joint module and the layout of components in the module, and does not need to specially reserve a larger space in the module for achieving the purpose of heat dissipation, so that the heat dissipation performance of the joint module can be greatly improved, and the trend of miniaturization of the current module is met. The heat dissipation device designed by the utility model has the advantages of simple structure, strong reliability, very good practicability and convenience for production and manufacturing.
Drawings
Fig. 1 is an assembly schematic of the present invention.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a partial enlarged view of the structure of the present invention.
Fig. 4 is an exploded view of the graphene heat dissipation mechanism of the present invention.
Reference numerals: 1. a motor; 11. a rotor; 12. a stator; 13. a stator winding; 2. a graphene heat dissipation mechanism; 21. heat conducting silica gel; 22. a conductive copper sheet; 23. a graphene layer; 3. a module housing; 4. a contact surface; 41. contact surface
(ii) a 42. Contact surface
(ii) a 5. A motor bracket;
Detailed Description
The technical scheme of the utility model is clearly and completely described below by combining the attached drawings of the specification. It is to be understood that the described embodiments are merely exemplary of some, and not necessarily all, embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without making creative efforts based on the embodiments of the present invention, belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or quantity or location.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1 and 2, a graphene film-based external rotor motor stator heat dissipation device includes a motor 1, a graphene heat dissipation mechanism 2, a module housing 3, a contact surface 4, and a motor bracket 5. The graphene heat dissipation mechanism 2 is sequentially provided with a heat conduction silica gel layer 21, a conduction copper sheet 22 and a graphene film 23 from top to bottom; the heat-conducting silica gel layer 21, the heat-conducting copper sheet 22 and the graphene film 23 in the graphene heat dissipation mechanism 2 are all in an annular sheet structure, the heat-conducting silica gel layer 21 at the upper end of the graphene heat dissipation mechanism 2 is tightly attached to the motor stator winding 13, and part of heat-conducting silica gel is filled into a gap of the motor stator winding 13 as a filler; contact surface between outer ring side surface of conductive copper sheet 22 in graphene heat dissipation mechanism 2 and module shell 3
41 are pressed against each other; graphene film 23 at bottom end of graphene heat dissipation mechanism 2, motor support 5 and contact surface
42 are in close fit.
As shown in fig. 1 and 2, the heat-conducting silica gel 21 is in close contact with the motor stator winding 13, so that heat can be rapidly transferred from the motor stator winding 13 to the heat-conducting silica gel 21, and the heat-conducting silica gel 21 is in close contact with the conduction copper sheet 22, so that heat can be rapidly transferred from the heat-conducting silica gel 21 to the conduction copper sheet 22.
As shown in fig. 1 and 2, the upper surface of the conductive copper sheet 22 is closely attached to the bottom surface of the heat conductive silica gel 21, the lower surface is closely attached to the graphene film 23, and the side surface of the outer ring is closely attached to the contact surface of the inner side of the module housing 3
41, a part of heat of the conductive copper sheet 22 can be directly conducted to the housing, and the lower surface of the conductive copper sheet 22 is tightly attached to the graphene film 23, so that most of heat in the conductive copper sheet 22 can be transferred to the graphene film 23.
As shown in fig. 1 and fig. 2, the upper surface of the graphene film 23 is tightly attached to the bottom surface of the conductive copper sheet 22, so that heat can be rapidly conducted from the conductive copper sheet 22 to the graphene film 23; the lower surface clings to the contact surface
42, heat can be passed through the contact surfaces
42 to the motor housing 3. The graphene film is of a single-layer structure, the graphene of the single-layer structure is high in heat conductivity coefficient, the heat conduction speed is high, and heat conduction can be accelerated.
As shown in fig. 4, the graphene film heat dissipation structure 2 is sequentially formed by a heat conductive silica gel 21, a heat conductive copper sheet 22 and a graphene film 23 from top to bottom, which are all ring-shaped sheets and have gaps. A notch is reserved through the annular sheets of the heat-conducting silica gel layer 21, the heat-conducting copper sheets 22 and the graphene film 23, so that the lead wires on the motor stator winding 13 can pass through smoothly, and the stability of the graphene heat dissipation mechanism 2 cannot be influenced by the motor wiring.
As shown in fig. 1 and 2, the thickness of the heat-conducting silica gel layer 21 is slightly greater than the distance between the motor stator winding 13 and the conducting copper sheet 22, so that the graphene heat dissipation mechanism 2 can be fixed by using the elastic characteristic of the heat-conducting silica gel layer 21, and the anti-seismic performance of the graphene heat dissipation mechanism is improved.
Contact surface
42 and motor support 5 are same horizontal plane, can guarantee the security of graphite alkene film 23 tiling, prevent that graphite alkene film 23 membrane fold is broken.
In the utility model, all module components are universal standard types, and the components in the graphene heat dissipation mechanism are also regular components which are easy to produce, and the structure and the principle of the graphene heat dissipation mechanism can be known by technical manuals or conventional experimental methods by technicians in the field.
The working principle of the utility model is as follows:
the graphene film in the shape of the annular sheet is flatly laid on the contact surface of the motor support 5 and the inner side of the module shell 3
42, then flatly laying the conductive copper sheet 22 on the graphene film 23, and enabling the side surface of the outer ring of the conductive copper sheet 22 to be in contact with the inner surface of the module shell 3
41, the graphene film is tightly attached to the motor bracket 5, so that the movement of the graphene film can be limited from the upper direction, the lower direction, the left direction and the right direction, and the graphene film can be better protected; when the graphene film and the conductive copper sheet are tiled, the position of an outgoing line of the motor stator coil 13 is required to be noticed, so that the outgoing line can penetrate through a gap reserved by the graphene film and the conductive copper sheet; finally, the heat-conducting silica gel 21 is flatly laid on the heat-conducting copper sheet 22, wherein the thickness of the heat-conducting silica gel is slightly larger than that of the heat-conducting copper sheetThe distance between the stator coil of the motor and the conductive copper sheet 22 is such that the graphene film 23 and the conductive copper sheet 22 can be well fixed.
When the motor stator winding 13 starts to generate heat, the heat conducting silica gel 21 can quickly conduct the heat to the conducting copper sheet 22, the conducting copper sheet 22 continuously conducts most of the heat to the graphene film 23, and meanwhile, part of the heat passes through the contact surface
41 are directly conducted to the module housing 3, and finally, the graphene film 23 conducts heat to the module housing 3 by utilizing the characteristic of high self heat conductivity coefficient, and the heat on the module housing 3 can be directly conducted to the air.
Although particular embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the claims and their equivalents.
Claims (10)
1. The graphene film-based outer rotor motor stator heat dissipation device is characterized by comprising a motor (1), a graphene heat dissipation mechanism (2), a module shell (3), a contact surface (4) and a motor support (5); the motor (1) comprises a rotor (11), a stator (12) and a stator winding (13); the graphene heat dissipation mechanism (2) is sequentially provided with a heat conduction silica gel layer (21), a conduction copper sheet (22) and a graphene film (23) from top to bottom; the contact surface (4) is positioned on the inner surface of the module shell (3) and comprises a contact surface I (41) and a contact surface II (42).
2. The external rotor motor stator heat dissipation device according to claim 1, wherein the upper surface of the heat-conducting silica gel layer (21) is tightly attached to the bottom surface of the motor stator winding (13), the lower surface of the heat-conducting silica gel layer (21) is tightly attached to the upper surface of the conducting copper sheet (22), and part of the heat-conducting silica gel is filled into the gap of the stator winding (13) as a filler.
3. The heat dissipation device for the stator of the external rotor motor as recited in claim 1, wherein the upper surface of the conductive copper sheet (22) is closely attached to the bottom surface and the lower surface of the heat conductive silica gel layer (21) is closely attached to the graphene film (23), and the outer side surface of the conductive copper sheet (22) is closely attached to the contact surface i (41).
4. The external rotor motor stator heat dissipation device according to claim 1, wherein the upper surface of the graphene film (23) is tightly attached to the bottom surface of the conductive copper sheet (22), and the lower surface is tightly attached to the motor bracket (5) and the contact surface II (42).
5. The external rotor motor stator heat dissipation device according to claim 2, wherein the heat-conducting silica gel layer (21), the conducting copper sheet (22) and the graphene film (23) are all in the shape of an annular sheet.
6. The external rotor motor stator heat dissipation device according to claim 5, wherein gaps are reserved on the heat conduction silica gel layer (21), the conduction copper sheet (22) and the graphene film (23).
7. The external rotor motor stator heat dissipation device according to claim 1, wherein the graphene film (23) is a single-layer structure.
8. The external rotor motor stator heat dissipation device of claim 2, wherein the thickness of the heat conductive silica gel layer (21) is slightly larger than the distance between the motor stator winding (13) and the conductive copper sheet (22).
9. The heat dissipation device for the stator of the external rotor motor as recited in claim 1, wherein the contact surface i (41) is annular and has a rough surface.
10. The external rotor motor stator heat dissipation device as recited in claim 1, wherein the contact surface ii (42) and the motor bracket (5) are located at the same horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122712081.6U CN215990491U (en) | 2021-11-08 | 2021-11-08 | Outer rotor motor stator heat abstractor based on graphite alkene film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122712081.6U CN215990491U (en) | 2021-11-08 | 2021-11-08 | Outer rotor motor stator heat abstractor based on graphite alkene film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215990491U true CN215990491U (en) | 2022-03-08 |
Family
ID=80510633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122712081.6U Active CN215990491U (en) | 2021-11-08 | 2021-11-08 | Outer rotor motor stator heat abstractor based on graphite alkene film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215990491U (en) |
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2021
- 2021-11-08 CN CN202122712081.6U patent/CN215990491U/en active Active
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