CN112653290A - Strong heat dissipation type motor - Google Patents
Strong heat dissipation type motor Download PDFInfo
- Publication number
- CN112653290A CN112653290A CN202010847035.4A CN202010847035A CN112653290A CN 112653290 A CN112653290 A CN 112653290A CN 202010847035 A CN202010847035 A CN 202010847035A CN 112653290 A CN112653290 A CN 112653290A
- Authority
- CN
- China
- Prior art keywords
- heat dissipation
- fixedly connected
- motor
- ring
- motor shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000017525 heat dissipation Effects 0.000 title claims abstract description 69
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 238000004140 cleaning Methods 0.000 claims abstract description 11
- 238000009434 installation Methods 0.000 claims description 11
- 230000000694 effects Effects 0.000 abstract description 14
- 238000001816 cooling Methods 0.000 abstract description 6
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000000498 cooling water Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/12—Brushes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
- B08B1/32—Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Motor Or Generator Cooling System (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention belongs to the technical field of motors, and particularly relates to a strong heat dissipation type motor which comprises a motor shell, wherein a terminal box is fixedly connected to the upper side of the motor shell, a stator and a rotor are arranged inside the motor shell, a rotating shaft is arranged inside the rotor, one end of the motor shell is fixedly connected with a front end cover, the other end of the motor shell is fixedly connected with an inner end cover, one end of the motor shell, close to the inner end cover, is fixedly connected with a fan cover, a connecting ring is sleeved outside one end of the rotating shaft, close to the fan cover, the side wall of the connecting ring is obliquely and fixedly connected with a group of fan blades, and one end of the rotating. According to the invention, through the cleaning rod, the bristles, the circulating water tank, the first heat dissipation ring, the second heat dissipation ring and the water delivery pipe, the phenomenon of blockage of a motor fan cover can be avoided, the heat dissipation effect of the motor is improved, the water-cooling heat dissipation can be carried out on the motor, the heat dissipation efficiency of the motor is obviously enhanced, and the service life of the motor is prolonged.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a strong heat dissipation type motor.
Background
The motor is an electromagnetic device for realizing electric energy conversion or transmission according to the law of electromagnetic induction, the motor easily generates heat in the working process of the motor, the motor is possibly damaged due to insulation of a motor coil when being in a high-temperature state for a long time, in order to ensure normal work of the motor, the motor shell is provided with heat dissipation ribs, and the tail part of a rotating shaft of the motor is also provided with heat dissipation fan blades.
Motor among the prior art can take place the phenomenon of jam in long-time working process, the fan casing, influences motor radiator fan's cooling effect, reduces the life of motor, and the radiating effect of motor among the prior art is not good simultaneously, and the temperature of motor risees easily, influences the work efficiency of motor, and the motor easily takes place to damage.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a strong heat dissipation type motor, which solves the problems that the motor in the prior art is blocked to influence the heat dissipation when a fan cover is used for a long time and the heat dissipation effect of the motor in the prior art is poor.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a strong heat dissipation type motor comprises a motor shell, wherein a terminal box is fixedly connected to the upper side of the motor shell, a stator and a rotor are arranged inside the motor shell, a rotating shaft is arranged inside the rotor, one end of the motor shell is fixedly connected with a front end cover, the other end of the motor shell is fixedly connected with an inner end cover, one end of the motor shell, which is close to the inner end cover, is fixedly connected with a fan cover, a connecting ring is sleeved outside one end of the rotating shaft, which is close to the fan cover, a group of fan blades are fixedly connected with the side wall of the connecting ring in an inclined mode, one end of the rotating shaft is fixedly connected with a connecting shaft, one end of the connecting shaft is fixedly connected with a connecting sleeve, the connecting sleeve is fixedly connected with an installation shaft through bolts, four cleaning rods are fixedly connected to the side wall of the installation shaft, the motor casing is close to the first heat dissipation ring of the one end fixedly connected with of front end housing, motor casing's other end fixedly connected with second heat dissipation ring, through the raceway intercommunication between first heat dissipation ring and the second heat dissipation ring, motor casing's downside fixedly connected with circulating water tank, circulating water tank's lower terminal surface fixedly connected with miniature pump, first connecting pipe and first heat dissipation ring intercommunication are passed through to miniature pump's one end, miniature pump's the other end passes through second connecting pipe and circulating water tank intercommunication, circulating water tank passes through third connecting pipe and second heat dissipation ring intercommunication.
As a preferred technical scheme of the present invention, an installation plate is disposed on a lower side of the motor housing, and the installation plate is fixedly connected to the first heat dissipation ring and the second heat dissipation ring through fixing posts.
As a preferable technical scheme of the invention, a group of radiating fins are fixedly connected to both side walls of the circulating water tank, and the distances between the adjacent radiating fins are the same.
As a preferred technical scheme of the invention, a limiting block is fixedly connected to the side wall of one end, close to the connecting sleeve, of the mounting shaft, and a limiting groove matched with the limiting block is formed in the inner wall of the connecting sleeve.
As a preferred technical scheme of the invention, the connecting sleeve and the mounting shaft are respectively provided with a threaded hole matched with the bolt, and the number of the threaded holes is four.
As a preferred technical scheme of the present invention, a protruding strip is fixedly disposed on a side wall of one end of the rotating shaft close to the connecting ring, and a groove matched with the protruding strip is disposed in the connecting ring.
As a preferred technical scheme of the present invention, the first heat dissipation ring and the second heat dissipation ring are both hollow structures, the number of the water pipes is not less than six, and the water pipes are both attached to the motor housing.
(III) advantageous effects
Compared with the prior art, the invention provides a strong heat dissipation type motor, which has the following beneficial effects:
1. this strong heat dissipation type motor through clean pole and brush, and the motor can be cleaned the fan casing of motor at the in-process that carries out work, avoids motor fan casing the phenomenon of jam to appear, can ensure motor radiator fan's radiating effect, improves the radiating effect of motor, and through adapter sleeve, bolt and installation axle again, the change is dismantled to clean pole to the convenience, and the practicality is stronger.
2. This type of dispelling heat by force motor through first heat dissipation ring, second heat dissipation ring, raceway and circulating water tank, can carry out water-cooling to the motor, is showing the radiating effect who strengthens the motor, improves the work efficiency of motor, improves the life of motor, avoids the motor to be in the middle of the operational environment of high temperature, improves the application scope of motor.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the present invention with a fan cover removed;
FIG. 3 is a schematic side view of the present invention;
FIG. 4 is a schematic view of the construction of the cleaning plate and mounting shaft of the present invention.
In the figure: 1. a motor housing; 2. a terminal box; 3. a front end cover; 4. a rotating shaft; 5. a fan housing; 6. a first heat dissipation ring; 7. a second heat dissipation ring; 8. a water delivery pipe; 9. a heat dissipating strip; 10. a circulating water tank; 11. a micro water pump; 12. a second connecting pipe; 13. a first connecting pipe; 14. a heat sink; 15. fixing a column; 16. mounting a plate; 17. a connecting ring; 18. a fan blade; 19. a connecting shaft; 20. connecting sleeves; 21. a bolt; 22. installing a shaft; 23. a cleaning rod; 24. brushing; 25. a third connecting pipe; 26. a limiting block; 27. an inner end cap.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1-4, the present invention provides the following technical solutions: a strong heat dissipation type motor comprises a motor shell 1, a terminal box 2 is fixedly connected to the upper side of the motor shell 1, a stator and a rotor are arranged inside the motor shell 1, a rotating shaft 4 is arranged inside the rotor, one end of the motor shell 1 is fixedly connected with a front end cover 3, the other end of the motor shell 1 is fixedly connected with an inner end cover 27, one end of the motor shell 1 close to the inner end cover 27 is fixedly connected with a fan cover 5, a connecting ring 17 is sleeved outside one end of the rotating shaft 4 close to the fan cover 5, a group of fan blades 18 are fixedly connected to the side wall of the connecting ring 17 in an inclined manner, one end of the rotating shaft 4 is fixedly connected with a connecting shaft 19, one end of the connecting shaft 19 is fixedly connected with a connecting sleeve 20, the connecting sleeve 20 is fixedly connected with a mounting shaft 22 through bolts 21, four cleaning rods 23 are fixedly connected to the side wall of the mounting shaft 22, the one end fixedly connected with first heat dissipation ring 6 that motor housing 1 is close to front end housing 3, motor housing 1's other end fixedly connected with second heat dissipation ring 7, communicate through raceway 8 between first heat dissipation ring 6 and the second heat dissipation ring 7, motor housing 1's downside fixedly connected with circulating water tank 10, circulating water tank 10's lower terminal surface fixedly connected with miniature pump 11, first connecting pipe 13 and first heat dissipation ring 6 intercommunication are passed through to miniature pump 11's one end, miniature pump 11's the other end passes through second connecting pipe 12 and circulating water tank 10 intercommunication, circulating water tank 10 passes through third connecting pipe 25 and second heat dissipation ring 7 intercommunication.
In this embodiment, the connection ring 17 is conveniently connected to the rotation shaft 4, the rotation of the rotation shaft 4 can rotate the connection ring 17, the rotation of the connection ring 17 rotates the fan blade 18, so as to rotate, the connection sleeve 20 can conveniently fix the installation shaft 22, so as to conveniently detach the installation shaft 22, and conveniently clean the cleaning rod 23, the brush 24 can clean the fan cover 5, so as to avoid the blockage of the cleaning cover, and ensure the heat dissipation effect of the fan blade 18, the heat dissipation strip 9 can conduct heat to the motor housing 1, the micro-water pump 11 conveys the cooling water in the circulation water tank 10 to the first cooling ring 6 through the second connection pipe 12 and the first connection pipe 13, then the cooling water in the first cooling ring 6 flows to the water pipe 8, so as to effectively cool the motor housing 1, and enhance the heat dissipation effect of the motor, the third connection pipe 25 facilitates the cooling water to flow back to the circulation water tank 10, thereby enabling a circulating flow.
Specifically, motor housing 1's downside is equipped with mounting panel 16, and mounting panel 16 passes through fixed column 15 respectively with first heat dissipation ring 6 and second heat dissipation ring 7 fixed connection.
In this embodiment, the motor is conveniently installed to mounting panel 16, and fixed column 15 can also conduct motor housing 1's heat to radiating effect can be improved.
Specifically, a group of radiating fins 14 are fixedly connected to both side walls of the circulating water tank 10, and the distances between the adjacent radiating fins 14 are the same.
In this embodiment, the cooling fins 14 can cool the circulation water tank 10, so that the motor housing 1 can be well cooled, and the heat dissipation effect of the motor is enhanced.
Specifically, the mounting shaft 22 is fixedly connected with a limiting block 26 on the side wall near one end of the connecting sleeve 20, and a limiting groove matched with the limiting block 26 is arranged on the inner wall of the connecting sleeve 20.
In this embodiment, stopper 26 conveniently carries out stable being connected with installation axle 22 and adapter sleeve 20 to can make installation axle 22 carry out stable rotation, thereby can make clean pole 23 carry out stable rotation, conveniently carry out stable cleanness to fan housing 5.
Specifically, the connecting sleeve 20 and the mounting shaft 22 are provided with threaded holes matched with the bolts 21, and the number of the threaded holes is four.
In this embodiment, the screw hole makes things convenient for installer to install installation axle 22 and adapter sleeve 20, still conveniently dismantles simultaneously, sets up simply the cost is lower.
Specifically, a convex strip is fixedly arranged on the side wall of one end, close to the connecting ring 17, of the rotating shaft 4, and a groove matched with the convex strip is arranged in the connecting ring 17.
In this embodiment, the protruding strips can limit the connection ring 17, so that the fan blades 18 can be rotated stably, and stable heat dissipation can be performed.
Specifically, the first heat dissipation ring 6 and the second heat dissipation ring 7 are both of a hollow structure, the number of the water pipes 8 is not less than six, and the water pipes 8 are attached to the motor housing 1.
In this embodiment, the first heat dissipation ring 6 and the second heat dissipation ring 7 are both hollow structures, so as to facilitate the flow of cooling water, and simultaneously, the heat dissipation effect can be improved.
The working principle and the using process of the invention are as follows: firstly, the rotation of the rotating shaft 4 can enable the connecting shaft 19 to rotate, the rotation of the connecting shaft 19 enables the connecting sleeve 20 to rotate, the rotation of the connecting sleeve 20 enables the mounting shaft 22 to rotate, the rotation of the mounting shaft 22 enables the cleaning rod 23 to rotate, the rotation of the cleaning rod 23 enables the bristles 24 to clean the fan cover 5, meanwhile, the miniature water pump 11 conveys cooling water in the circulating water tank 10 into the first radiating ring 6 through the second connecting pipe 12 and the first connecting pipe 13, then the cooling water in the first radiating ring 6 flows into the water conveying pipe 8, the water in the water conveying pipe 8 flows into the second radiating ring 7 again, and then flows back into the circulating water tank 10 through the third connecting pipe 25, so that the heat dissipation effect of the motor is obviously enhanced, and the service life of the motor is prolonged.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a strong heat dissipation type motor, includes motor housing (1), its characterized in that: the motor comprises a motor shell (1), a stator and a rotor are arranged in the motor shell (1), a rotating shaft (4) is arranged in the rotor, one end of the motor shell (1) is fixedly connected with a front end cover (3), the other end of the motor shell (1) is fixedly connected with an inner end cover (27), one end of the motor shell (1) close to the inner end cover (27) is fixedly connected with a fan cover (5), one end of the rotating shaft (4) close to the fan cover (5) is sleeved with a connecting ring (17), the side wall of the connecting ring (17) is obliquely and fixedly connected with a group of fan blades (18), one end of the rotating shaft (4) is fixedly connected with a connecting shaft (19), one end of the connecting shaft (19) is fixedly connected with a connecting sleeve (20), and the connecting sleeve (20) is fixedly connected with a mounting shaft (22) through a bolt (21), the side wall of the mounting shaft (22) is fixedly connected with four cleaning rods (23), the side walls of the four cleaning rods (23) are fixedly connected with bristles (24), the side wall of the motor shell (1) is fixedly provided with a heat dissipation strip (9), one end of the motor shell (1) close to the front end cover (3) is fixedly connected with a first heat dissipation ring (6), the other end of the motor shell (1) is fixedly connected with a second heat dissipation ring (7), the first heat dissipation ring (6) is communicated with the second heat dissipation ring (7) through a water pipe (8), the lower side of the motor shell (1) is fixedly connected with a circulating water tank (10), the lower end face of the circulating water tank (10) is fixedly connected with a micro water pump (11), one end of the micro water pump (11) is communicated with the first heat dissipation ring (6) through a first connecting pipe (13), and the other end of the micro water pump (11) is communicated with the circulating water tank (10) through a second connecting pipe (12), the circulating water tank (10) is communicated with the second heat dissipation ring (7) through a third connecting pipe (25).
2. A heat dissipation type motor according to claim 1, wherein: the downside of motor housing (1) is equipped with mounting panel (16), mounting panel (16) pass through fixed column (15) respectively with first heat dissipation ring (6) and second heat dissipation ring (7) fixed connection.
3. A heat dissipation type motor according to claim 1, wherein: two side walls of the circulating water tank (10) are fixedly connected with a group of radiating fins (14), and the adjacent radiating fins (14) are the same in distance.
4. A heat dissipation type motor according to claim 1, wherein: the installation axle (22) is close to fixedly connected with stopper (26) on the lateral wall of adapter sleeve (20) one end, be equipped with on the inner wall of adapter sleeve (20) with stopper (26) assorted spacing groove.
5. A heat dissipation type motor according to claim 1, wherein: the connecting sleeve (20) and the mounting shaft (22) are provided with threaded holes matched with the bolts (21), and the number of the threaded holes is four.
6. A heat dissipation type motor according to claim 1, wherein: the side wall of one end, close to the connecting ring (17), of the rotating shaft (4) is fixedly provided with a convex strip, and a groove matched with the convex strip is formed in the connecting ring (17).
7. A heat dissipation type motor according to claim 1, wherein: first heat dissipation ring (6) and second heat dissipation ring (7) are hollow structure, the quantity of raceway (8) is not less than six, and raceway (8) all laminate mutually with motor housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010847035.4A CN112653290A (en) | 2020-08-21 | 2020-08-21 | Strong heat dissipation type motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010847035.4A CN112653290A (en) | 2020-08-21 | 2020-08-21 | Strong heat dissipation type motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112653290A true CN112653290A (en) | 2021-04-13 |
Family
ID=75346161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010847035.4A Pending CN112653290A (en) | 2020-08-21 | 2020-08-21 | Strong heat dissipation type motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112653290A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113872389A (en) * | 2021-11-04 | 2021-12-31 | 正弦科技有限公司 | Permanent magnet motor driving transmission device of single-upright-column direct-drive oil pumping unit |
| CN115864748A (en) * | 2023-02-28 | 2023-03-28 | 三谷科技(东莞)有限公司 | Power generation heat dissipation type direct current brushless motor |
| CN117956772A (en) * | 2024-03-26 | 2024-04-30 | 成都宏明电子股份有限公司 | Magnetoresistive angular displacement sensor with efficient heat dissipation and cleaning functions |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207588648U (en) * | 2017-12-27 | 2018-07-06 | 云南农业大学 | A kind of cooling devcie of motor |
| CN108347122A (en) * | 2018-04-25 | 2018-07-31 | 湖州正鸣塑胶科技有限公司 | Household electrical appliances blender heat radiating type motor |
| CN111446815A (en) * | 2019-12-09 | 2020-07-24 | 无锡科技职业学院 | Explosion-proof motor |
-
2020
- 2020-08-21 CN CN202010847035.4A patent/CN112653290A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207588648U (en) * | 2017-12-27 | 2018-07-06 | 云南农业大学 | A kind of cooling devcie of motor |
| CN108347122A (en) * | 2018-04-25 | 2018-07-31 | 湖州正鸣塑胶科技有限公司 | Household electrical appliances blender heat radiating type motor |
| CN111446815A (en) * | 2019-12-09 | 2020-07-24 | 无锡科技职业学院 | Explosion-proof motor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113872389A (en) * | 2021-11-04 | 2021-12-31 | 正弦科技有限公司 | Permanent magnet motor driving transmission device of single-upright-column direct-drive oil pumping unit |
| CN115864748A (en) * | 2023-02-28 | 2023-03-28 | 三谷科技(东莞)有限公司 | Power generation heat dissipation type direct current brushless motor |
| CN117956772A (en) * | 2024-03-26 | 2024-04-30 | 成都宏明电子股份有限公司 | Magnetoresistive angular displacement sensor with efficient heat dissipation and cleaning functions |
| CN117956772B (en) * | 2024-03-26 | 2024-06-21 | 成都宏明电子股份有限公司 | Magnetoresistive angular displacement sensor with efficient heat dissipation and cleaning functions |
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Application publication date: 20210413 |