CN111964194A - Supercharging cold air blast system - Google Patents
Supercharging cold air blast system Download PDFInfo
- Publication number
- CN111964194A CN111964194A CN202010906366.0A CN202010906366A CN111964194A CN 111964194 A CN111964194 A CN 111964194A CN 202010906366 A CN202010906366 A CN 202010906366A CN 111964194 A CN111964194 A CN 111964194A
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- China
- Prior art keywords
- swing
- gear
- fixedly connected
- cover
- motor
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
- F04D25/10—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provisions for automatically changing direction of output air
- F04D25/105—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provisions for automatically changing direction of output air by changing rotor axis direction, e.g. oscillating fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
- F24F2013/1433—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with electric motors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a pressurized cold air blowing system which comprises a swinging module and a blowing module. According to the invention, the swinging module is arranged, so that the linear airflow blown out by the device can be changed in direction, and thus the indoor multi-azimuth cooling is realized.
Description
Technical Field
The invention relates to the technical field of life health, in particular to a pressurized cold air blowing system.
Background
Fan refers to a tool for cooling by generating wind in hot days. An electric fan is a device which is driven by electricity to generate air flow, a fan arranged in the electric fan is electrified and then rotated into natural wind to achieve the cooling effect, the pitch of the fan blades of the traditional fan is large, but the wind blown out by the fan has large layering, the user feels uncomfortable, and the wind blown out by the traditional fan belongs to environmental wind, so that the environment cannot be cooled.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a pressurized cold air blowing system, which solves the problems that the pitch of the fan blades of the traditional fan is very large, but the air blown out by the fan has very large layering, which causes discomfort for a user, and the air blown out by the traditional fan belongs to environmental air, so that the environment cannot be cooled.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a pressure boost cold wind blower system, is including swaing the module and blowing the module, the module of swaing include base, bracing piece, turning block, gangbar, sway motor cover support, sway the motor cover, sway the motor, sway the driving gear, sway the gear support, sway driven gear, sway the rotor plate and sway the slurcam, the middle part fixedly connected with bracing piece of base upper surface, the top fixedly connected with turning block of bracing piece, the top fixedly connected with of bracing piece surface sways the gear support, and the below of swaying the gear support is provided with sways the motor, and the surface of swaying the motor has cup jointed sways the motor cover, sways the motor cover and has swayed the gear support and pass through swaying motor cover support fixed connection.
The upper part of the swing module is provided with a blowing module, the blowing module comprises an air inlet cover, a heat-conducting cover, a connecting column, a heat-radiating cover, a refrigerating sheet, a cold-conducting cover, a thrust column, a thrust frame support, a linkage shaft, a turbulence gear support, a turbulence gear, a driving gear support, a front-end pressure fan limiting ring, a pressure fan, a rear-end pressure fan limiting ring, a pressure fan driving gear ring, a blowing driven gear, a blowing motor stabilizing frame, a blowing motor sleeve support, a blowing motor sleeve, a blowing motor and a blowing driving gear, the upper part of the connecting column is movably connected with the heat-conducting cover through the connecting column, the outer surface of the heat-conducting cover is fixedly connected with the refrigerating sheet, one surface of the refrigerating sheet, which is far away from the heat-conducting cover, is fixedly connected with the cold-conducting cover, the inner wall of the heat-conducting cover is fixedly connected with the cold-conducting cover, the flow pushing frame is rotatably connected with the cold guide cover through a flow pushing frame support.
Preferably, the output shaft fixedly connected with of rocking motor sways the driving gear, and the surface that sways the driving gear has the driven gear that sways through swaying gear support gear connection, and the rotor plate is swayd through connecting axle fixedly connected with in the top of the driven gear that sways, and the upper surface swing joint who sways the rotor plate has the catch bar that sways, sways the one end fixedly connected with gangbar that the rotor plate was kept away from to the catch bar.
Preferably, the side of the flow pushing frame is fixedly connected with a flow disturbing gear through a universal driving shaft, the flow disturbing gear is rotatably connected with the cold guide cover through a flow disturbing gear support, and an inner ring gear of the flow disturbing gear is connected with a driving gear.
Preferably, the side of the driving gear is fixedly connected with a blowing driven gear through a connecting shaft, and the driving gear and the blowing driven gear are rotationally connected with the turbulent flow gear support through a driving gear support.
Preferably, the outer surface gear of the air blowing driven gear is connected with an air blowing driving gear, a blower motor is arranged on the side of the air blowing driving gear, and an output shaft of the blower motor is fixedly connected with the air blowing driving gear.
Preferably, one end, close to the blower motor, of the temperature guide cover is fixedly connected with an air inlet cover, the blower motor is fixedly connected with the air inlet cover through a blower motor stabilizing frame, one end, far away from the blower driving gear, of the outer surface of the blower motor is sleeved with a blower motor sleeve, and the blower motor sleeve is fixedly connected with the blower motor stabilizing frame through a blower motor sleeve support.
Preferably, the outer surface gear of the blast driving gear is connected with a pressure fan driving gear ring, the outer surface of the pressure fan driving gear ring is fixedly connected with a pressure fan, and the pressure fan and the inner wall of the air inlet cover are rotatably connected through a rear end pressure fan limiting ring and a front end pressure fan limiting ring.
Preferably, heat-conducting silicone grease is smeared between the opposite surfaces of the refrigeration piece and the heat-conducting cover, and heat-conducting silicone grease is smeared between the opposite surfaces of the refrigeration piece and the heat-radiating cover.
Compared with the prior art, the invention provides a pressurized cold air blowing system which has the following beneficial effects: according to the invention, the swinging module is arranged, so that the linear airflow blown out by the device can be changed in direction, and thus the indoor multi-azimuth cooling is realized.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Fig. 2 is an exploded view of the blowing module structure of the present invention.
Fig. 3 is an enlarged view of a partial structure of the blowing module according to the present invention.
In the figure: 1-a swing module; 101-a base; 102-a support bar; 103-a turning block; 104-linkage rod; 105-a swing motor sleeve support; 106-a swing motor cover; 107-a rocking motor; 108-a wobble drive gear; 109-rocking gear rack; 110-a wobble driven gear; 111-rocking rotor plate; 112-rocking push plate wheels; 2-a blowing module; 201-an air inlet hood; 202-a temperature-conducting cover; 203-connecting column; 204-a heat dissipation cover; 205-refrigeration piece; 206-cold guide cover; 207-a plug flow column; 208-a plug flow rack; 209-a plug flow rack support; 210-a linkage shaft; 211-spoiler gear support; 212-spoiler gears; 213-a drive gear; 214-drive gear support; 215-front end pressure fan limit ring; 216-pressure fan; 217-rear pressure fan limit ring; 218-pressure fan drive gear ring; 219-a blower driven gear; 220-a blower motor stabilizer; 221-blower motor sleeve bracket; 222-a blower housing; 223-a blower motor; 224-air blast driving teeth.
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. 1, fig. 2 and fig. 3, the present invention provides a technical solution: a pressurized cold air blast system comprises a swing module 1 and a blast module 2, as shown in figure 1, the swing module structure of the invention is shown, wherein the swing module 1 comprises a base 101, a support rod 102, a rotating block 103, a linkage rod 104, a swing motor sleeve bracket 105, a swing motor sleeve 106, a swing motor 107, a swing driving gear 108, a swing gear bracket 109, a swing driven gear 110, a swing rotating plate 111 and a swing pushing plate 112, the middle part of the upper surface of the base 101 is fixedly connected with the support rod 102, the top end of the support rod 102 is fixedly connected with the rotating block 103, the top end of the outer surface of the support rod 102 is fixedly connected with the swing gear bracket 109, a swing motor 107 is arranged below the swing gear bracket 109, the outer surface of the swing motor 107 is sleeved with the swing motor sleeve 106, the swing motor sleeve 106 is fixedly connected with the swing gear bracket 109 through the swing motor sleeve bracket 105, the output shaft of the swing motor 107, the outer surface of the swing driving gear 108 is connected with a swing driven gear 110 through a swing gear bracket 109 in a gear manner, a swing rotating plate 111 is fixedly connected above the swing driven gear 110 through a connecting shaft, a swing pushing plate 112 is movably connected to the upper surface of the swing rotating plate 111, and one end, far away from the swing rotating plate 111, of the swing pushing plate 112 is fixedly connected with a linkage rod 104.
A blowing module 2 is arranged above the swing module 1, and as shown in fig. 2 and fig. 3, the blowing module structure of the invention is shown, wherein the blowing module 2 comprises an air inlet cover 201, a heat-conducting cover 202, a connecting column 203, a heat-radiating cover 204, a refrigerating sheet 205, a cold-conducting cover 206, a flow-pushing column 207, a flow-pushing frame 208, a flow-pushing frame support 209, a linkage shaft 210, a flow-disturbing gear support 211, a flow-disturbing gear 212, a driving gear 213, a driving gear support 214, a front-end pressure fan limit ring 215, a pressure fan 216, a rear-end pressure fan limit ring 217, a pressure fan driving gear ring 218, a blowing driven gear 219, a blowing motor stabilizing frame 220, a blowing motor sleeve support 221, a blowing motor sleeve 222, a blowing motor 223 and a blowing driving gear 224, the heat-conducting cover 202 is movably connected above the connecting column 203, the outer surface of the heat-conducting cover 202 is fixedly connected with the refrigerating sheet 205, one surface of the refrigerating sheet, the inner wall of the temperature guide hood 202 is fixedly connected with a cold guide hood 206, the inner side of the cold guide hood 206 is provided with a thrust column 207, the inner wall of the thrust column 207 is fixedly connected with a thrust frame 208, the thrust frame 208 and the cold guide hood 206 are rotatably connected through a thrust frame support 209, the side of the thrust frame 208 is fixedly connected with a spoiler gear 212 through a linkage shaft 210, the spoiler gear 212 is rotatably connected with the cold guide hood 206 through a spoiler gear support 211, the inner ring gear of the spoiler gear 212 is connected with a driving gear 213, the side of the driving gear 213 is fixedly connected with a blowing driven gear 219 through a connecting shaft, the driving gear 213 and the blowing driven gear 219 are rotatably connected with the spoiler gear support 211 through a driving gear support 214, the outer surface gear of the blowing driven gear 219 is connected with a blowing driving gear 224, the side of the blowing driving gear 224 is provided with a blowing motor 223, and the, one end of the temperature guide hood 202 close to the blower motor 223 is fixedly connected with an air inlet hood 201, the blower motor 223 is fixedly connected with the air inlet hood 201 through a blower motor stabilizing frame 220, one end of the outer surface of the blower motor 223 far away from a blower driving gear 224 is sleeved with a blower motor sleeve 222, the blower motor sleeve 222 is fixedly connected with the blower motor stabilizing frame 220 through a blower motor sleeve support 221, the outer surface of the blower driving gear 224 is connected with a pressure fan driving gear ring 218 through a gear, the outer surface of the pressure fan driving gear ring 218 is fixedly connected with a pressure fan 216, and the pressure fan 216 is rotatably connected with the inner wall of the air inlet hood 201 through a rear end pressure fan limiting ring 217 and a front end pressure fan limiting ring 215.
When the air inlet cover is used, a user firstly starts the refrigerating sheet 205, the refrigerating surface of the refrigerating sheet 205 can transfer the temperature to the temperature guide cover 202, the temperature guide cover 202 can transfer the temperature to the cold guide cover 206, the heating surface of the refrigerating sheet 205 can transfer the heat to the heat dissipation cover 204, so that the heat can be transferred to the air, at the moment, the air blowing motor 223 is started, the output shaft of the air blowing motor 223 can drive the air blowing driving gear 224 to rotate, the air blowing driving gear 224 can drive the air blowing driven gear 219 to rotate, the air blowing driven gear 219 can drive the driving gear 213 to rotate, the driving gear 213 can drive the spoiler gear 212 to rotate, the spoiler gear 212 can drive the spoiler frame 208 to rotate through the linkage shaft 210, the spoiler frame 208 can drive the spoiler column 207 to rotate, the spoiler column 207 can rotate to extrude the air from one end close to the air inlet cover 201 to one end far away from the air inlet cover 201, the air flow drives the cold air on the surface of the cold guide cover 206 while flowing, thereby reducing the temperature of the air blown by the device, at the same time, the blower driving gear 224 rotates and drives the pressure fan driving gear ring 218 to rotate, the pressure fan driving gear ring 218 rotates and drives the pressure fan 216 to rotate, the pressure fan 216 rotates and sends the outside air into the air inlet cover 201, when a user needs to change the direction of wind blown out by the device, only the swing motor 107 needs to be started, the output shaft of the swing motor 107 drives the swing driving gear 108 to rotate, the swing driving gear 108 rotates to drive the swing driven gear 110 to rotate, the swing driven gear 110 rotates to drive the swing rotating plate 111 to rotate, the swing rotating plate 111 rotates to drive the swing pushing plate 112 to swing, and the swing pushing plate 112 swings to drive the blowing module 2 to swing integrally through the linkage rod 104.
Although 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 invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a pressure boost cold wind blower system, includes sways module (1) and bloies module (2), its characterized in that: the swing module (1) comprises a base (101), a support rod (102), a rotating block (103), a linkage rod (104), a swing motor sleeve bracket (105), a swing motor sleeve (106), a swing motor (107), a swing driving gear (108), a swing gear bracket (109), a swing driven gear (110), a swing rotating plate (111) and a swing pushing plate (112), the middle part of the upper surface of the base (101) is fixedly connected with a supporting rod (102), the top end of the supporting rod (102) is fixedly connected with a rotating block 103, the top end of the outer surface of the supporting rod (102) is fixedly connected with a swing gear support (109), a swing motor (107) is arranged below the swing gear support (109), a swing motor sleeve (106) is sleeved on the outer surface of the swing motor (107), and the swing motor sleeve (106) is fixedly connected with the swing gear support (109) through a swing motor sleeve support (105);
the air blowing module (2) is arranged above the swing module (1), the air blowing module (2) comprises an air inlet cover (201), a temperature guide cover (202), a connecting column (203), a heat dissipation cover (204), a refrigerating sheet (205), a cold guide cover (206), a flow pushing column (207), a flow pushing frame (208), a flow pushing frame support (209), a linkage shaft (210), a flow disturbing gear support (211), a flow disturbing gear (212), a driving gear (213), a driving gear support (214), a front end pressure fan limiting ring (215), a pressure fan (216), a rear end pressure fan limiting ring (217), a pressure fan driving gear ring (218), a blowing driven gear (219), a blowing motor stabilizing frame (220), a blowing motor sleeve support (221), a blowing motor sleeve (222), a blowing motor (223) and a blowing gear (224), the temperature guide cover (202) is movably connected above the connecting column (203) through the connecting column (203), the outer fixed surface of leading warm cover (202) is connected with refrigeration piece (205), and the one side fixedly connected with heat exchanger (204) of keeping away from leading warm cover (202) of refrigeration piece (205), the inner wall fixedly connected with of leading warm cover (202) leads cold cover (206), and the inboard of cold cover (206) is provided with plug flow post (207), and the inner wall fixedly connected with of plug flow post (207) pushes away a class frame (208), pushes away class frame (208) and cold cover (206) and rotate through pushing away class frame support (209) and is connected.
2. A pressurized cold air blast system according to claim 1, characterized in that: an output shaft of the swing motor (107) is fixedly connected with a swing driving gear (108), the outer surface of the swing driving gear (108) is connected with a swing driven gear (110) through a swing gear support (109) in a gear mode, a swing rotating plate (111) is fixedly connected above the swing driven gear (110) through a connecting shaft, the upper surface of the swing rotating plate (111) is movably connected with a swing pushing plate (112), and one end of the swing pushing plate (112) far away from the swing rotating plate (111) is fixedly connected with a linkage rod (104).
3. A pressurized cold air blast system according to claim 1, characterized in that: the side of the flow pushing frame (208) is fixedly connected with a spoiler gear (212) through a linkage shaft (210), the spoiler gear (212) is rotatably connected with the cold guide cover (206) through a spoiler gear support (211), and an inner ring gear of the spoiler gear (212) is connected with a driving gear (213).
4. A pressurized cold air blast system according to claim 1, characterized in that: the side of drive gear (213) is through connecting axle fixedly connected with blast air driven gear (219), drive gear (213) and blast air driven gear (219) are connected with vortex gear support 211 through drive gear support (214) rotation.
5. A pressurized cold air blast system according to claim 1, characterized in that: the outer surface gear of the air blowing driven gear (219) is connected with an air blowing driving gear (224), an air blowing motor (223) is arranged on the side of the air blowing driving gear (224), and an output shaft of the air blowing motor (223) is fixedly connected with the air blowing driving gear (224).
6. A pressurized cold air blast system according to claim 1, characterized in that: the air inlet hood is fixedly connected to one end, close to the blower motor (223), of the temperature guide hood (202), the blower motor (223) is fixedly connected with the air inlet hood (201) through a blower motor stabilizing frame (220), a blower motor sleeve (222) is sleeved on one end, far away from a blower driving gear (224), of the outer surface of the blower motor (223), and the blower motor sleeve (222) is fixedly connected with the blower motor stabilizing frame (220) through a blower motor sleeve support (221).
7. A pressurized cold air blast system according to claim 1, characterized in that: the outer surface gear connection of blast air driving gear (224) has pressure fan drive gear ring (218), and the outer fixed surface of pressure fan drive gear ring (218) is connected with pressure fan (216), and pressure fan (216) are connected with the inner wall of admitting air cover (201) through rear end pressure fan spacing ring (217) and front end pressure fan spacing ring (215) rotation.
8. A pressurized cold air blast system according to claim 1, characterized in that: heat-conducting silicone grease is smeared between the opposite surfaces of the refrigeration piece (205) and the heat-conducting cover (202), and heat-conducting silicone grease is smeared between the opposite surfaces of the refrigeration piece (205) and the heat-radiating cover 204.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010906366.0A CN111964194B (en) | 2020-09-01 | 2020-09-01 | Supercharging cold air blast system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010906366.0A CN111964194B (en) | 2020-09-01 | 2020-09-01 | Supercharging cold air blast system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111964194A true CN111964194A (en) | 2020-11-20 |
| CN111964194B CN111964194B (en) | 2021-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010906366.0A Active CN111964194B (en) | 2020-09-01 | 2020-09-01 | Supercharging cold air blast system |
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| CN (1) | CN111964194B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112553677A (en) * | 2020-12-04 | 2021-03-26 | 惠州市特创电子科技股份有限公司 | Gantry line for electroplating circuit board and circuit board electroplating method |
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| CN109209957A (en) * | 2018-10-23 | 2019-01-15 | 郑州森之林电子科技有限公司 | A kind of electric fan |
| CN109631205A (en) * | 2018-12-18 | 2019-04-16 | 宁波市镇海区职业教育中心学校 | A kind of multifunctional cold and heat air purifying fan |
| CN211144875U (en) * | 2019-12-17 | 2020-07-31 | 苏州市侨鑫电子科技有限公司 | Cooling fan control device |
| CN111473421A (en) * | 2020-04-20 | 2020-07-31 | 珠海格力电器股份有限公司 | Fan blade assembly for semiconductor air conditioner, fan assembly and semiconductor air conditioner |
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| CN112553677A (en) * | 2020-12-04 | 2021-03-26 | 惠州市特创电子科技股份有限公司 | Gantry line for electroplating circuit board and circuit board electroplating method |
| CN112553677B (en) * | 2020-12-04 | 2021-11-09 | 惠州市特创电子科技股份有限公司 | Gantry line for electroplating circuit board and circuit board electroplating method |
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