CN110601425A - Motor with balanced module heat radiation structure - Google Patents
Motor with balanced module heat radiation structure Download PDFInfo
- Publication number
- CN110601425A CN110601425A CN201810598466.4A CN201810598466A CN110601425A CN 110601425 A CN110601425 A CN 110601425A CN 201810598466 A CN201810598466 A CN 201810598466A CN 110601425 A CN110601425 A CN 110601425A
- Authority
- CN
- China
- Prior art keywords
- heat dissipation
- motor
- semicircular
- rotating shaft
- 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
Classifications
-
- 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
- H02K9/02—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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses a motor with a balanced module heat dissipation structure, which comprises a motor body, wherein the motor body comprises a rotating shaft and a motor shell, the motor shell is of a hollow double-layer structure and consists of an inner-layer shell, an outer-layer shell, heat dissipation ribs arranged on the outer-layer shell and connecting circular ring plates arranged at two ends of the inner-layer shell and the outer-layer shell, the heat dissipation ribs are of a hollow structure, two ends of each heat dissipation rib are respectively provided with an opening, the hollow parts of the heat dissipation ribs are communicated with the hollow layers, and a plurality of through holes are uniformly formed in the surface of each connecting circular ring plate; the motor shell is provided with the hollow double-layer structure, under the action of the heat dissipation fan, outside air enters from the opening at one end of the heat dissipation rib and the through hole on the plate surface of one connecting circular plate and flows out from the opening at the other end of the heat dissipation rib and the through hole on the plate surface of the other connecting circular plate, and the heat dissipation effect on the rear end of the motor and the position of the motor shell is better than that of the traditional motor structure, and the heat dissipation is uniform.
Description
Technical Field
The invention relates to the technical field of motor heat dissipation, in particular to a motor with a balance module heat dissipation structure.
Background
The motor can produce heat in the course of working, if these heats can not distribute away in time will seriously influence the operation of motor, the radiating mode of the existing motor mainly divide into air-cooled and water-cooled. The air-cooled type is that a heat dissipation blade is installed at the tail end of a rotor shaft of the motor, and the rotor shaft drives the blade to rotate in the operation process of the motor to form a heat dissipation fan structure for ventilating and dissipating heat of the motor. The air-cooled radiating structure has uneven heat radiation, only has better radiating effect on the tail end of the motor, and causes the failure of the motor body and the front end of the motor due to poor radiating effect. Although the water-cooled heat radiation structure has even heat radiation and better heat radiation effect than the air-cooled heat radiation structure, the production cost and the operation cost are both very high.
Disclosure of Invention
The invention aims to provide a motor with a balancing module heat dissipation structure, which aims to solve the problem of uneven heat dissipation of the existing motor adopting an air cooling heat dissipation mode.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a motor with balanced module heat radiation structure, includes motor body, motor body includes pivot and motor housing, the heat dissipation fan is installed to the rear end of pivot, the heat dissipation fan is provided with the rear end cover shell outward, motor housing is hollow bilayer structure, by inlayer shell, outer shell, set up the heat dissipation muscle on outer shell and set up in the inner shell and constitute with the connection ring board at outer shell both ends, form the cavity between inlayer shell, outer shell and the connection ring board, the heat dissipation muscle evenly sets up along the outer cylinder generating line direction of outer shell, the heat dissipation muscle is the equal opening setting in hollow structure and both ends, the cavity and the cavity of heat dissipation muscle communicate with each other, even being provided with a plurality of through-holes on the face of connection ring board.
Further, the front end of pivot is provided with radiator unit, radiator unit includes two radiating element that the structure is the same, radiating element includes a semicircle dish, be provided with the semicircular through-hole that uses the centre of a circle of disc as the centre of a circle on the semicircle dish, one side of semicircle dish is provided with perpendicularly with the endocentric semicircular axle sleeve of semicircular through-hole, semicircular axle sleeve's internal diameter is the same with semicircular through-hole's diameter, two semicircle end departments of semicircular axle sleeve outwards extend there is the diaphragm, be provided with the through-hole on the diaphragm, two radiating element install the both sides at the pivot relatively, two radiating element through set up the bolt assembly fixed connection in through-hole department on the diaphragm in the pivot, the excircle end slope of semicircle dish is provided with a plurality of blades.
Furthermore, the diameter of the semicircular through hole is slightly smaller than that of the rotating shaft, and the heat dissipation element is made of a nylon material.
Further, the inclination direction of the blades is the same as the direction of the wind generated by the heat dissipation fan when the rotating shaft rotates.
Further, the distance between the outer end of the semicircular disc and the central axis of the rotating shaft is smaller than the radius of the inner circle of the connecting circular ring plate, the distance between the outer end of the blade and the central axis of the rotating shaft is larger than the radius of the inner circle of the connecting circular ring plate, and the distance between the outer end of the radiating rib and the central axis of the rotating shaft is smaller than the distance between the outer end of the radiating rib and the central axis of.
Further, the radiating component outside is provided with columniform front end housing, a bottom surface opening of front end housing sets up, and another bottom surface seals the setting, the open end of front end housing links to each other with the one end of heat dissipation muscle, the center department of the closed bottom surface of front end housing is provided with circular through-hole, and the diameter of circular through-hole is greater than the diameter of pivot, the outside of circular through-hole is provided with a plurality of ventilative through-holes on the closed bottom surface of front end housing.
Furthermore, the top of heat dissipation muscle becomes circular-arcly, and the both ends department on top all is provided with helicitic texture, the open end of rear end housing is provided with the internal thread structure, the open end threaded connection of rear end housing is in the rear end of heat dissipation muscle.
Furthermore, the open end of front end housing is provided with internal thread structure, the open end threaded connection of front end housing is at the front end of heat dissipation muscle.
Compared with the prior art, the invention has the beneficial effects that:
1. be provided with hollow bilayer structure's motor case, the hollow layer between the hollow and motor case's the inlayer shell and the outer shell of heat dissipation muscle communicates with each other, under the effect of heat dissipation fan, external air gets into by the opening part of heat dissipation muscle one end and the through-hole department on the face of a connection ring board, flow out by the opening part of the heat dissipation muscle other end and the through-hole department on the face of another connection ring board, take away the heat that produces when the motor moves, the radiating effect to the rear end of motor and motor case department is better than traditional motor structure's radiating effect, and the heat dissipation is even moreover.
2. The front end of pivot is provided with radiator unit, and when the pivot rotated, drive radiator unit and rotate, the blade rotated thereupon, and the direction of the wind that the blade produced is the same with the direction of the wind that the radiator fan produced, and like this, the both ends of motor housing all have the wind of the same flow direction, make the exchange effect of external air and the inside air of motor housing better.
3. The top of heat dissipation muscle becomes circular-arcly, and the both ends department on top all is provided with helicitic texture, the open end of rear end housing and front end housing all is provided with internal thread structure, the open end of rear end housing and front end housing is threaded connection respectively at the both ends of heat dissipation muscle, the mounted position of rear end housing and front end housing can not take place the incline, with the top surface in close contact with of heat dissipation muscle not the hourglass wind, the more efficient utilization of wind energy that heat dissipation fan and radiator unit's blade produced.
Drawings
Fig. 1 is a front view of a conventional motor.
Fig. 2 is a side view of a conventional motor.
Fig. 3 is a front view of the structural schematic of the present invention.
Fig. 4 is a schematic view of fig. 3 with the front cover removed.
Fig. 5 is a side view of a schematic of the structure of the present invention.
Fig. 6 is a schematic view of fig. 5 with the heat sink assembly and front cover removed.
Fig. 7 is a schematic structural view of the heat dissipation assembly of the present invention mounted on the rotating shaft.
Fig. 8 is a side view of the heat-dissipating component of the present invention.
Fig. 9 is a schematic cross-sectional view of a motor housing of the present invention.
Fig. 10 is a schematic view of the thread structures at two ends of the heat sink rib according to the present invention.
In the figure: 1-rotating shaft, 2-motor shell, 201-inner shell, 202-outer shell, 203-radiating rib, 204-connecting circular plate, 205-hollow layer, 3-radiating fan, 4-rear end cover shell, 5-radiating element, 501-semicircular disc, 502-semicircular shaft sleeve, 503-transverse plate, 504-blade, 6-front end cover shell, 601-circular through hole and 602-ventilation through hole.
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.
Referring to fig. 3, 6 and 9, in an embodiment of the present invention, a motor with a balanced module heat dissipation structure includes a motor body, the motor body includes a rotating shaft 1 and a motor housing 2, a heat dissipation fan 3 is installed at a rear end of the rotating shaft 1, a rear end cover housing 4 is installed outside the heat dissipation fan 3, the motor housing 2 is a hollow double-layer structure, and is composed of an inner-layer housing 201, an outer-layer housing 202, a heat dissipation rib 203 installed on the outer-layer housing 202, and a connection circular plate 204 installed at two ends of the inner-layer housing 201 and the outer-layer housing 202, a hollow layer 205 is formed between the inner-layer housing 201, the outer-layer housing 202, and the connection circular plate 204, the heat dissipation rib 203 is uniformly arranged along a direction of an outer cylindrical bus of the outer-layer housing 202, the heat dissipation rib 203 is a hollow structure, and both ends of the heat dissipation rib are open, a hollow of the heat dissipation rib 203 is communicated with the, when the motor operates, the rotating shaft 1 drives the heat dissipation fan 3 to rotate, under the action of the heat dissipation fan 3, external air enters from the opening at one end of the heat dissipation rib 203 and the through hole on the plate surface of one connecting circular plate 204, flows out from the opening at the other end of the heat dissipation rib 203 and the through hole on the plate surface of the other connecting circular plate 204, takes away heat generated during the operation of the motor, and has a better heat dissipation effect on the rear end of the motor and the heat dissipation effect at the position of the motor shell 2 than that of a traditional motor structure, and the heat dissipation is even.
Referring to fig. 3, 4, 7 and 8, a heat dissipation assembly is disposed at the front end of the rotating shaft 1, the heat dissipation assembly includes two heat dissipation elements 5 having the same structure, the heat dissipation element 5 includes a semicircular disc 501, a semicircular through hole is disposed on the semicircular disc 501 and the center of the circle is the center of the disc, a semicircular shaft sleeve 502 concentric with the semicircular through hole is vertically disposed on one side of the semicircular disc 501, the inner diameter of the semicircular shaft sleeve 502 is the same as the diameter of the semicircular through hole, transverse plates 503 extend outwards from two semicircular ends of the semicircular shaft sleeve 502, a through hole is disposed on the transverse plates 503, the semicircular discs 501 of the two heat dissipation elements 5 are connected with each other to form a complete disc, a complete circular hole is formed at the center of the disc, a complete shaft sleeve is disposed at the circular hole, the transverse plates 503 of the two heat dissipation elements 5 are in one-to-one, the two heat dissipation elements 5 are fixedly connected to the rotating shaft 1 through bolt assemblies arranged at through holes in the transverse plate 503, the outer circle end of the semicircular disc 501 is obliquely provided with a plurality of blades 504, and the oblique direction of the blades 504 is the same as the direction of wind generated by the heat dissipation fan 3 when the rotating shaft 1 rotates; when the rotating shaft 1 rotates, the heat dissipation assembly is driven to rotate, the blades 504 rotate along with the rotating shaft, the direction of wind generated by the blades 504 is the same as that of wind generated by the heat dissipation fan 3, wind with the same flow direction is arranged at the two ends of the motor shell 2, external air can be effectively ensured to enter from an opening at one end of the heat dissipation rib 203 and a through hole on the plate surface of one connecting circular plate 204 and flow out from an opening at the other end of the heat dissipation rib 203 and a through hole on the plate surface of the other connecting circular plate 204, and the heat dissipation effect is better; the heat dissipation component is detachably arranged on the rotating shaft 1 and can be detached when not in use; the diameter of the semicircular through hole is slightly smaller than that of the rotating shaft 1, the heat dissipation assembly can be fixedly installed on the rotating shaft 1 by screwing the bolt assembly arranged at the through hole on the transverse plate 503, and the heat dissipation element 5 is made of nylon materials, so that the heat dissipation assembly has enough strength and certain ductility, and cannot damage the rotating shaft 1; the distance of the outer end of the semicircular disc 501 from the central axis of the rotating shaft 1 is smaller than the radius of the inner circle of the connecting circular ring plate 204, the distance of the outer end of the blade 504 from the central axis of the rotating shaft 1 is larger than the radius of the inner circle of the connecting circular ring plate 204, the distance of the outer end of the radiating rib 203 from the central axis of the rotating shaft 1 is smaller than the distance of the outer end of the radiating rib 203 from the central axis of the rotating shaft 1, the radiating rib is arranged in such a way, the wind generated by the blade 504 is concentrated at the opening of the radiating rib.
Referring to fig. 3 and 5, a cylindrical front end cover 6 is disposed outside the heat dissipation assembly, one bottom surface of the front end cover 6 is open, the other bottom surface of the front end cover 6 is closed, the opening of the front end cover 6 is connected to one end of the heat dissipation rib 203, a circular through hole 601 is disposed in the center of the closed bottom surface of the front end cover 6, the diameter of the circular through hole 601 is larger than that of the rotating shaft 1, a plurality of ventilation through holes 602 are disposed outside the circular through hole 601 on the closed bottom surface of the front end cover 6 to ensure the flow of air when the blade 504 rotates, and the front end cover 6 is used for protecting the heat dissipation assembly from being damaged by foreign objects and protecting workers from being damaged by the heat dissipation assembly.
Referring to fig. 10, the top end of the heat dissipation rib 203 is arc-shaped, and both ends of the top end are provided with thread structures, the open end of the rear end shield shell 4 is provided with an internal thread structure, and the open end of the rear end shield shell 4 is in threaded connection with the rear end of the heat dissipation rib 203; the rear end cover shell 4 of the traditional motor is arranged on the motor shell 2 of which the rear end shell is arranged through screws, the rear end cover shell 4 is easy to deflect when being arranged, and the opening end of the rear end cover shell 4 cannot be in close contact with the heat dissipation ribs 203, so that the heat dissipation effect of the heat dissipation fan 3 on the heat dissipation ribs 203 is poor; by using the thread mounting structure, the mounting position of the rear end housing 4 cannot be deviated, the rear end housing 4 is in close contact with the top surface of the heat dissipation rib 203, air leakage cannot occur, and the wind energy generated by the heat dissipation fan 3 is utilized more efficiently.
The open end of front end housing 6 is provided with internal thread structure, and the open end threaded connection of front end housing 6 is at the front end of heat dissipation muscle 203, and the mounted position of front end housing 6 can not take place the skew, and front end housing 6 is not leaked out with the top surface in close contact with of heat dissipation muscle 203, and the more efficient utilization of the wind energy that blade 504 produced.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. The utility model provides a motor with balanced module heat radiation structure, includes motor body, motor body includes pivot (1) and motor housing (2), heat dissipation fan (3) are installed to the rear end of pivot (1), heat dissipation fan (3) are provided with rear end housing (4) outward, its characterized in that: motor housing (2) are hollow bilayer structure, by inlayer shell (201), outer shell (202), set up heat dissipation muscle (203) on outer shell (202) and set up in inlayer shell (201) and outer shell (202) both ends be connected ring plate (204) and constitute, form cavity (205) between inlayer shell (201), outer shell (202) and the connection ring plate (204), heat dissipation muscle (203) evenly sets up along outer cylinder generating line direction of outer shell (202), heat dissipation muscle (203) are the equal opening setting in hollow structure and both ends, the hollow and cavity (205) of heat dissipation muscle (203) communicate with each other, even being provided with a plurality of through-holes on the face of connecting ring plate (204).
2. An electric motor having an equalization module heat dissipation structure as recited in claim 1, wherein: the front end of the rotating shaft (1) is provided with a heat dissipation assembly, the heat dissipation assembly comprises two heat dissipation elements (5) with the same structure, the heat dissipation elements (5) comprise a semicircular disc (501), the semicircular disc (501) is provided with a semicircular through hole taking the circle center of the disc as the circle center, one side of the semicircular disc (501) is vertically provided with a semicircular shaft sleeve (502) concentric with the semicircular through hole, the inner diameter of the semicircular shaft sleeve (502) is the same as the diameter of the semicircular through hole, two semicircular ends of the semicircular shaft sleeve (502) extend outwards to form transverse plates (503), the transverse plates (503) are provided with through holes, the two heat dissipation elements (5) are oppositely arranged at two sides of the rotating shaft (1), and the two heat dissipation elements (5) are fixedly connected to the rotating shaft (1) through bolt assemblies arranged at the through holes on the transverse plates (503), the outer circle end of the semicircular disc (501) is obliquely provided with a plurality of blades (504).
3. An electric motor having an equalizing module heat dissipating structure as set forth in claim 2, wherein: the diameter of the semicircular through hole is slightly smaller than that of the rotating shaft (1), and the heat dissipation element (5) is made of a nylon material.
4. An electric motor having an equalizing module heat dissipating structure as set forth in claim 2, wherein: the inclination direction of the blades (504) is the same as the direction of the wind generated by the heat dissipation fan (3) when the rotating shaft (1) rotates.
5. An electric motor having an equalizing module heat dissipating structure as set forth in claim 2, wherein: the distance between the outer end of the semicircular disc (501) and the central axis of the rotating shaft (1) is smaller than the radius of the inner circle of the connecting circular ring plate (204), the distance between the outer end of the blade (504) and the central axis of the rotating shaft (1) is larger than the radius of the inner circle of the connecting circular ring plate (204), and the distance between the outer end of the radiating rib (203) and the central axis of the rotating shaft (1) is smaller.
6. An electric motor having an equalizing module heat dissipating structure as set forth in claim 2, wherein: the radiating component outside is provided with columniform front end housing (6), a bottom surface opening setting of front end housing (6), another bottom surface seals the setting, the open end of front end housing (6) links to each other with the one end of heat dissipation muscle (203), the center department of the sealed bottom surface of front end housing (6) is provided with circular through-hole (601), and the diameter of circular through-hole (601) is greater than the diameter of pivot (1), the outside of circular through-hole (601) is provided with a plurality of ventilative through-holes (602) on the sealed bottom surface of front end housing (6).
7. An electric motor having an equalization module heat dissipation structure as recited in claim 1, wherein: the top of heat dissipation muscle (203) becomes circular-arcly, and the both ends department on top all is provided with helicitic texture, the open end of rear end housing (4) is provided with internal thread structure, the open end threaded connection of rear end housing (4) is in the rear end of heat dissipation muscle (203).
8. An electric motor having an equalization module heat dissipation structure as recited in claim 4, wherein: the opening end of the front end housing (6) is provided with an internal thread structure, and the opening end of the front end housing (6) is in threaded connection with the front end of the heat dissipation rib (203).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810598466.4A CN110601425A (en) | 2018-06-12 | 2018-06-12 | Motor with balanced module heat radiation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810598466.4A CN110601425A (en) | 2018-06-12 | 2018-06-12 | Motor with balanced module heat radiation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110601425A true CN110601425A (en) | 2019-12-20 |
Family
ID=68848672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810598466.4A Pending CN110601425A (en) | 2018-06-12 | 2018-06-12 | Motor with balanced module heat radiation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110601425A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH099575A (en) * | 1995-06-19 | 1997-01-10 | Hitachi Ltd | Rotary electric machine |
| CN202260787U (en) * | 2011-09-23 | 2012-05-30 | 哈尔滨理工大学 | Hollow heat radiating fin self inner cooling structure |
| CN105490458A (en) * | 2016-01-26 | 2016-04-13 | 浙江科宁电机有限公司 | Motor heat dissipation structure |
| CN107919762A (en) * | 2017-12-21 | 2018-04-17 | 傅皓衍 | A kind of efficient shock-absorbing motor |
-
2018
- 2018-06-12 CN CN201810598466.4A patent/CN110601425A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH099575A (en) * | 1995-06-19 | 1997-01-10 | Hitachi Ltd | Rotary electric machine |
| CN202260787U (en) * | 2011-09-23 | 2012-05-30 | 哈尔滨理工大学 | Hollow heat radiating fin self inner cooling structure |
| CN105490458A (en) * | 2016-01-26 | 2016-04-13 | 浙江科宁电机有限公司 | Motor heat dissipation structure |
| CN107919762A (en) * | 2017-12-21 | 2018-04-17 | 傅皓衍 | A kind of efficient shock-absorbing motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205003431U (en) | Colour wheel heat abstractor | |
| KR101342746B1 (en) | Cooling fan | |
| CN206023489U (en) | Hollow axle radiating inner rotor motor and external rotor electric machine | |
| CN106208521A (en) | A kind of gas cooled electrical machine | |
| CN110601425A (en) | Motor with balanced module heat radiation structure | |
| CN112483324A (en) | Wind driven generator device | |
| CN219281889U (en) | Wind generating set heat abstractor | |
| CN211901066U (en) | Novel fan blade of cooling fan | |
| CN113555623B (en) | Heat radiation structure of group battery | |
| CN208804193U (en) | A kind of gear of heat dissipation type | |
| CN208479392U (en) | A kind of faster motor of thermal diffusivity | |
| CN219394562U (en) | Efficient ceiling fan motor dispels heat | |
| CN207621079U (en) | Water pump radiator structure and water pump | |
| CN205283288U (en) | Heat dissipation generator | |
| CN206739234U (en) | It is a kind of that there is radiating and dust-proof plastics outer casing of power supply | |
| CN210839135U (en) | Novel brushless motor housing rear end cover with pump | |
| CN110829731A (en) | Heat dissipation component of energy-saving motor | |
| CN216134347U (en) | Hole-free type wind driven generator end cover with heat dissipation structure | |
| CN215580690U (en) | Special horizontal motor of oil pressure | |
| CN212374428U (en) | Fixing device for motor of stacker crane | |
| CN211010938U (en) | Naval vessel L ED signal lamp that radiating effect is good | |
| CN219420502U (en) | High heat dissipation motor | |
| CN213482814U (en) | Computer cooling plate | |
| CN219960246U (en) | Outer rotor motor for ceiling fan | |
| CN214757606U (en) | Miniature electronic circuit device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191220 |