CN216312778U - Inside radiating head backplate hold-down mechanism of motor - Google Patents
Inside radiating head backplate hold-down mechanism of motor Download PDFInfo
- Publication number
- CN216312778U CN216312778U CN202122886997.3U CN202122886997U CN216312778U CN 216312778 U CN216312778 U CN 216312778U CN 202122886997 U CN202122886997 U CN 202122886997U CN 216312778 U CN216312778 U CN 216312778U
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- China
- Prior art keywords
- heat dissipation
- stator
- positioning seat
- motor
- back plate
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Links
- 230000017525 heat dissipation Effects 0.000 claims abstract description 56
- 239000013585 weight reducing agent Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 26
- 230000000694 effects Effects 0.000 abstract description 15
- 239000004519 grease Substances 0.000 abstract description 12
- 229920001296 polysiloxane Polymers 0.000 abstract description 12
- 238000007906 compression Methods 0.000 abstract description 7
- 230000006835 compression Effects 0.000 abstract description 6
- 238000001816 cooling Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 208000016261 weight loss Diseases 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The utility model discloses a pressing mechanism for a backboard of a heat dissipation head in a motor, which comprises a stator and a plurality of heat dissipation heads, wherein the stator is provided with a plurality of grooves, and the heat dissipation heads are detachably arranged in the grooves; the stator positioning device further comprises a positioning seat and a plurality of back plates, wherein the back plates are detachably arranged on the positioning seat, and the positioning seat is detachably connected with the stator; after the positioning seat is connected with the stator, the back plate can push the heat dissipation head out of the groove. The utility model realizes the effect that the heat dissipation heads compress the iron core, controls the back plate through the bolt tightening force so as to more flexibly adjust the compression effect of each heat dissipation head, ensures that the heat dissipation heads have enough compression force to be compressed to the inner surface of the iron core, greatly reduces the contact thermal resistance and fully exerts the effect of the heat-conducting silicone grease.
Description
Technical Field
The utility model relates to the technical field of motors, in particular to a radiating head and back plate pressing mechanism in a motor.
Background
With the increasing power density of the motor, the heat dissipation problem is more and more severe; for an outer rotor brushless motor, a liquid cooling heat dissipation design is used in the motor, but a liquid cooling runner and a cavity are directly integrated in a motor stator structure; the design of the integrated radiating head and the stator, the iron core coil is the only heating source of the motor, the inner wall surface of the iron core coil is in contact fit with the outer ring wall surface of the stator, and because of the technical requirements of motor assembly, the diameter of the outer ring wall surface of the stator and the diameter of the inner ring wall surface of the iron core must have a certain gap, the gap directly and greatly increases the thermal resistance of the contact heat transfer of the two wall surfaces, and the heat transfer effect is seriously influenced.
When the radiating head adopts a split type scheme, the radiating head is installed from the outside to the inside in the radial direction of the stator, and after the radiating head is installed, the radiating head cannot be adjusted to press the inner wall surface of the iron core outwards by bolts, so that the radiating capacity of liquid cooling cannot be fully exerted. Stator outer lane wall and iron core inner circle wall can paint the heat conduction silicone grease of high coefficient of heat conductivity in order to fill the clearance, but the processing back then fixed the inside and outside wall diameter of size, if in order to paint more silicone grease, then the clearance will give a little, if the clearance is little, the silicone grease of painting is avoided the face by the interior of iron core and is scraped a lot of silicone grease when packing into the iron core, influences the radiating effect.
Disclosure of Invention
The utility model aims to solve the problems that: the pressing mechanism for the back plate of the heat dissipation head inside the motor realizes the effect of pressing the heat dissipation head on the iron core, controls the back plate through the bolt tightening force to adjust the pressing effect of each heat dissipation head more flexibly, ensures that the heat dissipation head has enough pressing force to be pressed on the inner surface of the iron core, greatly reduces contact thermal resistance and fully exerts the effect of heat conduction silicone grease.
The technical scheme provided by the utility model for solving the problems is as follows: a pressing mechanism for a backboard of a heat dissipation head in a motor comprises a stator and a plurality of heat dissipation heads, wherein a plurality of grooves are formed in the stator, and the heat dissipation heads are detachably arranged in the grooves; the stator positioning device further comprises a positioning seat and a plurality of back plates, wherein the back plates are detachably arranged on the positioning seat, and the positioning seat is detachably connected with the stator; after the positioning seat is connected with the stator, the back plate can push the heat dissipation head out of the groove.
Preferably, the positioning seat is detachably connected with the back plate through a bolt.
Preferably, the positioning seat comprises an annular bottom plate and a plurality of fixing blocks arranged on the annular bottom plate, and the fixing blocks are provided with first threaded holes.
Preferably, the back plate comprises a guide portion and a connecting portion, and the connecting portion is arranged at one end of the guide portion to form a Y-shaped structure.
Preferably, the connecting portion is provided with a second threaded hole, and the guide portion is provided with a fifth threaded hole.
Preferably, the guide portion is provided with a weight reduction groove.
Preferably, the positioning seat is provided with a connecting block, the connecting block is provided with a third threaded hole, a fourth threaded hole is formed in the position, corresponding to the third threaded hole, of the stator, and the third threaded hole is connected with the fourth threaded hole through a bolt.
Preferably, the heat dissipation head is liquid-cooled or air-cooled for heat dissipation.
Compared with the prior art, the utility model has the advantages that: the utility model realizes the effect that the heat dissipation heads compress the iron core, controls the back plate through the bolt tightening force so as to more flexibly adjust the compression effect of each heat dissipation head, ensures that the heat dissipation heads have enough compression force to be compressed to the inner surface of the iron core, greatly reduces the contact thermal resistance and fully exerts the effect of the heat-conducting silicone grease.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model.
FIG. 1 is a schematic perspective view of the present invention;
fig. 2 is an exploded schematic view of the present invention.
The attached drawings are marked as follows: 1. the heat dissipation head comprises a heat dissipation head body 2, a fixing block 3, a connecting portion 4, an annular base plate 5, threaded holes III and 6, a connecting block 7, a stator 8, threaded holes II and 9, a guide portion 10, a groove 11, threaded holes IV and 12, a weight reduction groove 13, threaded holes I and 15 and a threaded hole V.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings and examples, so that how to implement the technical means for solving the technical problems and achieving the technical effects of the present invention can be fully understood and implemented.
In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated without limiting the specific scope of protection of the present invention.
Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, a definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the utility model, "a number" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.
The specific embodiment of the utility model is shown in fig. 1-2, a backboard pressing mechanism of a heat dissipation head 1 in a motor comprises a stator 7 and a plurality of heat dissipation heads 1, wherein the stator 7 is provided with a plurality of grooves 10, and the heat dissipation heads 1 are detachably arranged in the grooves 10; the stator positioning device further comprises a positioning seat and a plurality of back plates, wherein the back plates are detachably arranged on the positioning seat, and the positioning seat is detachably connected with the stator 7; after the positioning seat is connected with the stator 7, the back plate can push the heat dissipation head 1 out of the groove 10.
As another embodiment of the present invention, the positioning seat is detachably connected to the back plate by a bolt.
As another embodiment of the utility model, the positioning seat comprises an annular bottom plate 4 and a plurality of fixing blocks 2 arranged on the annular bottom plate 4, and the fixing blocks 2 are provided with first threaded holes 13.
As another embodiment of the utility model, the backboard comprises a guide part 9 and a connecting part 3, wherein the connecting part 3 is arranged at one end of the guide part 9 to form a Y-shaped structure.
As another embodiment of the present invention, a second threaded hole 8 is provided on the connecting portion 3, and a fifth threaded hole 15 is provided on the guide portion. And a threaded hole corresponding to the threaded hole V is formed in the radiating head, and the guide part is connected with the radiating head through a bolt.
As another embodiment of the present invention, the guide portion 9 is provided with a weight-reduction groove 12.
As another embodiment of the utility model, a connecting block 6 is arranged on the positioning seat, a threaded hole three 5 is arranged on the connecting block 6, a threaded hole four 11 is arranged at a position, corresponding to the threaded hole three 5, on the stator 7, and the threaded hole three 5 is connected with the threaded hole four 11 through a bolt.
As another embodiment of the present invention, the heat dissipation head is liquid-cooled or air-cooled.
Before the iron core is not installed, each heat dissipation head can slide inwards after being installed into the corresponding groove until the back planes on the two sides of the heat dissipation head are attached to the bottom plane of each groove, the position is called as the maximum limiting position of the heat dissipation head, the back plate is installed on the stator and the positioning seat through three bolts, and the bolts are screwed into corresponding threaded holes of the back plate by a small length, so that the back plate can not fall off in the subsequent installation and operation process. When the maximum limit position of the radiating head is arranged, the arc-shaped curved surface of the radiating head and the arc-shaped surface of the outer ring of the stator form dislocation, the dislocation gap is enough to paint heat-conducting silicone grease with certain thickness, and the coated silicone grease is ensured not to be scraped by the inner wall surface of the iron core in the process of assembling the iron core, and then the iron core winding part is assembled.
After the iron core is installed, the bolts of the back plates of the heat dissipation heads are sequentially and uniformly screwed, the back plates gradually press the respective heat dissipation heads to be outwards compressed along the radial direction along with the continuous screwing of the bolts into the threads of the back plates, after each heat dissipation head is attached to the inner wall surface of the iron core, the bolts are continuously screwed to enable the attaching surface to generate enough pressing force, and the slow compression process is more beneficial to uniform filling of heat conduction silicone grease between the heat dissipation heads and the contact surface of the iron core.
After the back plate fixing bolt of each heat dissipation head is screwed, the bolt between the positioning seat and the stator is screwed, and the positioning seat not only fixes the back plates of the heat dissipation heads, but also limits the movement of the iron core in the axial direction of the stator, so that the iron core is firmly pressed and cannot slide.
The special groove structure of the utility model can ensure that the heat dissipation head has a certain moving space, and can prevent the iron core from scraping the heat-conducting silicone grease on the surface of the heat dissipation head when the iron core is installed.
The utility model realizes the effect that the heat dissipation heads compress the iron core, controls the back plate through the bolt tightening force so as to more flexibly adjust the compression effect of each heat dissipation head, ensures that the heat dissipation heads have enough compression force to be compressed to the inner surface of the iron core, greatly reduces the contact thermal resistance and fully exerts the effect of the heat-conducting silicone grease.
The foregoing is merely illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to vary. All changes which come within the scope of the utility model as defined by the independent claims are intended to be embraced therein.
Claims (8)
1. A pressing mechanism for a backboard of a heat dissipation head inside a motor comprises a stator (7) and a plurality of heat dissipation heads (1), wherein the stator (7) is provided with a plurality of grooves (10), and the heat dissipation heads (1) are detachably arranged in the grooves (10); the method is characterized in that: the positioning device also comprises a positioning seat and a plurality of back plates, wherein the back plates are detachably arranged on the positioning seat, and the positioning seat is detachably connected with the stator (7); after the positioning seat is connected with the stator (7), the back plate can push the heat dissipation head (1) out of the groove (10).
2. The pressing mechanism for the back plate of the heat dissipation head inside the motor as claimed in claim 1, wherein: the positioning seat is detachably connected with the back plate through a bolt.
3. The pressing mechanism for the back plate of the heat dissipation head inside the motor as claimed in claim 2, wherein: the positioning seat comprises an annular bottom plate (4) and a plurality of fixing blocks (2) arranged on the annular bottom plate (4), and threaded holes I (13) are formed in the fixing blocks (2).
4. The pressing mechanism for the back plate of the heat dissipation head inside the motor as claimed in claim 3, wherein: the backboard comprises a guide part (9) and a connecting part (3), wherein the connecting part (3) is arranged at one end of the guide part (9) to form a Y-shaped structure.
5. The pressing mechanism for the back plate of the heat dissipation head inside the motor as claimed in claim 4, wherein: and a second threaded hole (8) is formed in the connecting part (3), and a fifth threaded hole (15) is formed in the guide part (9).
6. The pressing mechanism for the back plate of the heat dissipation head inside the motor as claimed in claim 4 or 5, wherein: and a weight reduction groove (12) is formed in the guide part (9).
7. The pressing mechanism for the back plate of the heat dissipation head inside the motor as claimed in claim 3, wherein: the positioning seat is provided with a connecting block (6), the connecting block (6) is provided with a threaded hole III (5), a threaded hole IV (11) is arranged at a position, corresponding to the threaded hole III (5), on the stator (7), and the threaded hole III (5) is connected with the threaded hole IV (11) through a bolt.
8. The pressing mechanism for the back plate of the heat dissipation head inside the motor as claimed in claim 3, wherein: the heat dissipation head (1) is liquid-cooled or air-cooled for heat dissipation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122886997.3U CN216312778U (en) | 2021-11-23 | 2021-11-23 | Inside radiating head backplate hold-down mechanism of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122886997.3U CN216312778U (en) | 2021-11-23 | 2021-11-23 | Inside radiating head backplate hold-down mechanism of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216312778U true CN216312778U (en) | 2022-04-15 |
Family
ID=81121663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122886997.3U Active CN216312778U (en) | 2021-11-23 | 2021-11-23 | Inside radiating head backplate hold-down mechanism of motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216312778U (en) |
-
2021
- 2021-11-23 CN CN202122886997.3U patent/CN216312778U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Manufacturing Center, Building D, No. 888, Tianxiang North Avenue, Nanchang High-tech Industrial Development Zone, Nanchang City, Jiangxi Province 330000 Patentee after: Nanchang Sanrui Intelligent Technology Co.,Ltd. Address before: Room 33 # 101, Nanchang Jiahai Industrial Park, No. 2799 Tianxiang Avenue, Nanchang High tech Industrial Development Zone, Nanchang City, Jiangxi Province, 330224 Patentee before: Nanchang SanRui Intelligent Technology Co.,Ltd. |
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| CP03 | Change of name, title or address |