CN111608940A - Centrifugal fan blade and automatic overheat-proof axial flow fan of motor - Google Patents
Centrifugal fan blade and automatic overheat-proof axial flow fan of motor Download PDFInfo
- Publication number
- CN111608940A CN111608940A CN202010447872.8A CN202010447872A CN111608940A CN 111608940 A CN111608940 A CN 111608940A CN 202010447872 A CN202010447872 A CN 202010447872A CN 111608940 A CN111608940 A CN 111608940A
- Authority
- CN
- China
- Prior art keywords
- arc
- motor
- positioning plate
- annular positioning
- fan blade
- 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.)
- Granted
Links
- 238000013021 overheating Methods 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 7
- 238000005265 energy consumption Methods 0.000 abstract description 11
- 230000017525 heat dissipation Effects 0.000 abstract description 5
- 230000002265 prevention Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—Vanes
-
- 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
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/5806—Cooling the drive system
-
- 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
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
-
- 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
Abstract
The invention discloses a centrifugal fan blade and an automatic motor overheating prevention axial flow fan, which comprises an annular positioning plate, wherein a plurality of thermosensitive bimetallic strips are arranged on the annular positioning plate, one ends of the thermosensitive bimetallic strips are fixed on the annular positioning plate, the other ends of the thermosensitive bimetallic strips are connected with arc-shaped blades, the arc-shaped blades surround to form a circular ring in a low-temperature state, and the thermosensitive bimetallic strips deform to drive the arc-shaped blades to rotate by a plurality of angles towards the center direction of the annular positioning plate in a high-temperature state. The centrifugal fan blade can effectively reduce energy consumption at low temperature and can normally convey gas at high temperature, and the axial flow fan can effectively reduce energy consumption at low temperature and improve the heat dissipation efficiency of the motor at high temperature.
Description
Technical Field
The invention belongs to the technical field of fans, and particularly relates to a centrifugal fan blade and an axial flow fan capable of automatically preventing overheating of a motor.
Background
The fan is common ventilation equipment, and general axial fan is applicable to the wind pressure and is little, the big operating mode of amount of wind, for example the ventilation of building and factory building, and different fans according to service environment both have been used for transmitting high temperature gas and also are used for transmitting low temperature gas, because some fans of the different needs of ambient temperature's change and processing both are used for transmitting high temperature gas and also are used for transmitting low temperature gas. When low-temperature gas is conveyed, the low-temperature gas in the air duct can pass through the motor, so that the temperature of the common motor cannot be too high. When high-temperature gas is conveyed, the motor is overheated due to poor heat dissipation of the motor, the service life of the motor is influenced, an axial flow fan which is generally used for conveying the high-temperature gas in the prior art generally introduces cold air from the outside of the air duct through a pipeline to cool the motor, fan blades are generally required to be arranged on the motor of the axial flow fan, the motor drives the first fan blades to rotate, meanwhile, the second fan blades rotate simultaneously, and the cold air is sucked from the pipeline through the rotation of the second fan blades to dissipate the heat of the motor. However, the fan drives the second fan blade to rotate and suck external cold air, and simultaneously consumes a part of energy, so that the overall energy consumption of the fan is increased, and the axial flow fan which is used for transmitting high-temperature gas and low-temperature gas does not need to suck external cold air to cool the motor when transmitting low-temperature gas, so that the energy consumption is only meaningless, and how to reduce the output power of the second fan blade in a low-temperature state becomes the key of energy conservation.
Disclosure of Invention
The invention provides a centrifugal fan blade and an automatic motor overheat prevention axial flow fan aiming at the defects of the prior art, the centrifugal fan blade is approximately a circular ring at low temperature, external cold air is not sucked, the output power of the motor to the centrifugal fan blade is reduced, and when the temperature is overhigh, the blade in the second fan blade automatically changes the angle and is changed into the centrifugal fan blade, so that the air transmission can be normally operated; the fan is provided with a channel for sucking external cold air and a centrifugal fan blade which is used for sucking the external cold air and connected with an output shaft of a motor, wherein the blade of the centrifugal fan blade is approximately a circular ring at low temperature, the external cold air is not sucked, and the output power of the motor to the centrifugal fan blade is reduced.
In order to solve the technical problem, the invention is solved by the following technical scheme: the centrifugal fan blade comprises an annular positioning plate, wherein a plurality of thermosensitive bimetallic strips are arranged on the annular positioning plate, one end of each thermosensitive bimetallic strip is fixed on the annular positioning plate, the other end of each thermosensitive bimetallic strip is connected with an arc-shaped blade, the arc-shaped blades are in a plurality of shapes around a formed circular ring in a low-temperature state, and the thermosensitive bimetallic strips are deformed to drive the arc-shaped blades to face towards the center of the annular positioning plate and rotate by a plurality of angles in a high-temperature state. When the centrifugal fan blade is in a high-temperature state, the thermosensitive bimetallic strip deforms to drive the arc-shaped blades to rotate for a plurality of angles towards the center direction of the annular positioning plate, and in the rotating process of the annular positioning plate, the arc-shaped blades can drive the air flow at the center to disperse outwards, so that air can be conveyed. When the temperature is low, the arc-shaped blades surround to form a circular ring, and the arc-shaped blades hardly take force when the annular positioning plate rotates, so that the energy consumption can be effectively reduced.
In the above technical scheme, preferably, a plurality of abutting portions are arranged on the annular positioning plate, and the plurality of arc-shaped blades abut against the abutting portions respectively in a high-temperature state. The support through supporting to the portion can strengthen the intensity of arc blade under high temperature state, prevents that the arc blade from rocking, guarantees gas conveying's efficiency.
In the above technical solution, preferably, in a high temperature state, the abutting portion abuts against one end of the arc-shaped blade close to the center of the annular positioning plate.
In the above technical scheme, preferably, in a high temperature state, the thermal sensitive bimetallic strip deforms to drive the plurality of arc-shaped blades to rotate 50 degrees towards the center direction of the annular positioning plate.
An axial flow fan capable of automatically preventing overheating of a motor comprises an air duct, wherein a motor support is arranged in the air duct, a motor is arranged on the motor support, a first fan blade is arranged on an output shaft of the motor, a sealing shell is arranged outside the motor, an air inlet pipeline and an air outlet pipeline which are communicated with the outside of the air duct are arranged on the sealing shell, a cooling channel is formed between the motor and the sealing shell, a centrifugal fan blade is further arranged on the output shaft of the motor and located in the sealing shell, the centrifugal fan blade comprises an annular positioning plate, a plurality of thermosensitive bimetallic strips are arranged on the annular positioning plate, one ends of the thermosensitive bimetallic strips are fixed on the annular positioning plate, the other ends of the thermosensitive bimetallic strips are connected with arc-shaped blades, and the arc-shaped blades form a circular ring in a low-temperature state; under the high-temperature state, the thermal sensitive bimetallic strip deforms to drive the arc-shaped blades to rotate for a plurality of angles towards the center direction of the annular positioning plate. When the automatic motor overheating prevention axial flow fan operates at low temperature, the arc-shaped blades on the centrifugal fan blades are surrounded to form a circular ring, the arc-shaped blades are hardly stressed when the annular positioning plate rotates, energy consumption can be effectively reduced, under a high-temperature state, the thermosensitive bimetallic strip deforms to drive the arc-shaped blades to rotate for a plurality of angles towards the center direction of the annular positioning plate, and in the rotating process of the annular positioning plate, the arc-shaped blades can drive central airflow to be outwards diffused, so that cold air outside the air duct can enter from an air inlet pipeline and is discharged from an air outlet pipeline through a cooling channel, and the heat dissipation efficiency of the motor is improved.
In the above technical scheme, preferably, a volute is arranged at the tail of the sealing shell, the centrifugal fan blade is arranged in the volute, and the volute is connected with the air outlet pipeline. By adopting the structure, the gas transmission efficiency of the centrifugal fan blade can be improved, so that the energy consumption can be reduced when the motor is at low temperature, and the motor can be rapidly cooled when the motor is at high temperature.
In the above technical scheme, preferably, a plurality of abutting portions are arranged on the annular positioning plate, and the plurality of arc-shaped blades abut against the abutting portions respectively in a high-temperature state. The support through supporting to the portion can strengthen the intensity of arc blade under high temperature state, prevents that the arc blade from rocking, guarantees gas conveying's efficiency.
In the above technical solution, preferably, in a high temperature state, the abutting portion abuts against one end of the arc-shaped blade close to the center of the annular positioning plate.
In the above technical scheme, preferably, in a high temperature state, the thermal sensitive bimetallic strip deforms to drive the plurality of arc-shaped blades to rotate 50 degrees towards the center direction of the annular positioning plate.
Compared with the prior art, the invention has the following beneficial effects: when the centrifugal fan blade is in a high-temperature state, the thermosensitive bimetallic strip deforms to drive the arc-shaped blades to rotate for a plurality of angles towards the center direction of the annular positioning plate, and in the rotating process of the annular positioning plate, the arc-shaped blades can drive the air flow at the center to disperse outwards, so that air can be conveyed. When the temperature is low, the arc-shaped blades surround to form a circular ring, and the arc-shaped blades hardly take force when the annular positioning plate rotates, so that the energy consumption can be effectively reduced. When the automatic motor overheating prevention axial flow fan operates at low temperature, the arc-shaped blades on the centrifugal fan blades are surrounded to form a circular ring, the arc-shaped blades are hardly stressed when the annular positioning plate rotates, energy consumption can be effectively reduced, under a high-temperature state, the thermosensitive bimetallic strip deforms to drive the arc-shaped blades to rotate for a plurality of angles towards the center direction of the annular positioning plate, and in the rotating process of the annular positioning plate, the arc-shaped blades can drive central airflow to be outwards diffused, so that cold air outside the air duct can enter from an air inlet pipeline and is discharged from an air outlet pipeline through a cooling channel, and the heat dissipation efficiency of the motor is improved.
Drawings
Fig. 1 is a structural schematic diagram of a centrifugal fan blade in a low-temperature state.
Fig. 2 is a structural schematic diagram of a centrifugal fan blade in a high-temperature state.
Fig. 3 is a schematic sectional view of an axial flow fan for automatically preventing overheating of a motor according to the present invention.
Fig. 4 is a structural schematic diagram of the centrifugal fan blade in fig. 3 in a low-temperature state.
Fig. 5 is a schematic structural diagram of the centrifugal fan blade in fig. 3 in a high-temperature state.
Detailed Description
The invention is described in further detail below with reference to the following detailed description and accompanying drawings: referring to fig. 1 to 2, a centrifugal fan blade, including annular locating plate 1, annular locating plate 1 is used for with the output shaft fixed mounting of motor, the welding has eight evenly distributed's temperature sensing bimetallic strip 2 on annular locating plate 1, the welding of the one end of temperature sensing bimetallic strip 2 is on annular locating plate 1, the welding of the other end has arc blade 3, under the low temperature state, eight arc blade 3 around forming the ring, under the high temperature state, temperature sensing bimetallic strip 2 deformation drives a plurality of arc blade 3 and rotates 50 degrees towards annular locating plate 1 central direction. Thermosensitive bimetal piece 2 is made by the different metal laminating of two-layer inflation volume of being heated, roughly the arc, can take place the upset after being heated to drive arc blade 3 and rotate towards 1 central direction of annular locating plate. The shape of the thermal bimetal 2 and the thickness of the two metal layers can be set according to the temperature required to be deformed, and the shape changes when the set temperature is reached, which is a common prior art in the thermal switch, and in the embodiment, the thermal bimetal 2 deforms when the temperature reaches 67 degrees. That is, in the present embodiment, the high temperature state is 67 degrees or more, and the low temperature state is 67 degrees or less.
Be provided with eight on the annular locating plate 1 and support portion 4, under the high temperature state, eight cambered vane 3 support with support portion 4 respectively and support, and under the high temperature state, support portion 4 and cambered vane 3 and be close to the one end at annular locating plate 1 center and offset. The strength of the arc-shaped blade 3 can be enhanced under a high-temperature state through the leaning of the leaning part 4, the arc-shaped blade 3 is prevented from shaking, and the efficiency of conveying gas is ensured.
Under the high-temperature state of the centrifugal fan blade, the heat-sensitive bimetallic strip 2 deforms to drive the arc-shaped blades 3 to rotate 50 degrees towards the center direction of the annular positioning plate 1, and in the rotating process of the annular positioning plate 1, the arc-shaped blades 3 can drive the air flow at the center to disperse outwards, so that the air can be conveyed. When the temperature is low, the arc-shaped blades 3 surround to form a circular ring, and the arc-shaped blades 3 hardly take force when the annular positioning plate 1 rotates, so that the energy consumption can be effectively reduced.
Referring to fig. 3 to 5, an axial flow fan capable of automatically preventing overheating of a motor includes an air duct 4, a motor bracket 5 is fixed in the air duct 4, a motor 6 is fixed on the motor bracket 5, a first fan blade 7 is fixed on an output shaft of the motor 6, a sealing housing 8 is welded outside the motor 6, a cooling channel 11 is formed between the motor 6 and the sealing housing 8, an air inlet pipe 9 and an air outlet pipe 10 communicated with the outside of the air duct 4 are arranged on the sealing housing 8, a centrifugal fan blade 100 is further arranged on the output shaft of the motor 6, in this embodiment, an output shaft of the motor 6 penetrates through a shell of the motor, the first fan blade 7 is located on the front side of the output shaft, the centrifugal fan blade 100 is located on the tail side of the output shaft, a volute 81 is arranged on the tail portion of the sealing shell 8, the centrifugal fan blade 100 is located in the volute 81, the volute 81 is connected with the air outlet pipeline 10, and the air inlet pipeline 9 is located on the front side of the sealing shell 8. When the centrifugal fan blade 100 rotates to convey air, cold air outside the air duct 4 can enter from the air inlet pipeline 9, pass through the cooling channel 11, enter from the center of the volute 81, and is discharged from the air outlet pipeline 10 after passing through the centrifugal fan blade 100, so that heat of the motor 6 is taken away.
Be provided with eight on the annular locating plate 1 and support portion 4, under the high temperature state, eight cambered vane 3 support with support portion 4 respectively and support, and under the high temperature state, support portion 4 and cambered vane 3 and be close to the one end at annular locating plate 1 center and offset. The strength of the arc-shaped blade 3 can be enhanced under a high-temperature state through the leaning of the leaning part 4, the arc-shaped blade 3 is prevented from shaking, and the efficiency of conveying gas is ensured.
When the automatic motor overheating prevention axial flow fan operates at low temperature, the arc-shaped blades 3 on the centrifugal fan blades 100 are surrounded to form a circular ring, the arc-shaped blades 3 are hardly stressed when the annular positioning plate 1 rotates at the moment, energy consumption can be effectively reduced, under a high-temperature state, the heat-sensitive bimetallic strip 2 deforms to drive the arc-shaped blades 3 to rotate 50 degrees towards the center direction of the annular positioning plate, in the rotating process of the annular positioning plate 1, the arc-shaped blades 3 can drive central air flow to be outwards diffused, so that cold air outside the air duct 4 can enter from the air inlet pipeline 9 and pass through the cooling channel 11 to enter from the center of the volute 81, and is discharged from the air outlet pipeline 10 after passing through the centrifugal fan blades 100, and the heat dissipation efficiency. The axial flow fan capable of automatically preventing the motor from overheating is particularly suitable for being used under the working conditions of transmitting high-temperature gas and low-temperature gas.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.
Claims (9)
1. The utility model provides a centrifugal fan blade, includes annular locating plate (1), its characterized in that: be provided with a plurality of temperature sensing bimetallic strips (2) on annular locating plate (1), it is a plurality of temperature sensing bimetallic strip (2) one end is fixed in on annular locating plate (1), the other end is connected with arc blade (3), and is under the low temperature state, it is a plurality of arc blade (3) are around forming the ring, and under the high temperature state, temperature sensing bimetallic strip (2) deformation drives a plurality of arc blade (3) orientation annular locating plate (1) central direction rotates a plurality of angles.
2. A centrifugal fan blade according to claim 1, wherein: a plurality of abutting parts (4) are arranged on the annular positioning plate (1), and under the warm state, the arc-shaped blades (3) are respectively abutted against the abutting parts (4).
3. A centrifugal fan blade according to claim 2, wherein: and in a high-temperature state, the abutting part (4) abuts against one end of the arc-shaped blade (3) close to the center of the annular positioning plate (1).
4. A centrifugal fan blade according to claim 1, wherein: under the high-temperature state, the thermal sensitive bimetallic strip (2) deforms to drive the arc-shaped blades (3) to rotate 50 degrees towards the center direction of the annular positioning plate (1).
5. The utility model provides an automatic prevent overheated axial fan of motor, includes dryer (4), be provided with motor support (5) in dryer (4), be provided with motor (6) on motor support (5), be provided with first fan blade (7), its characterized in that on the output shaft of motor (6): a sealing shell (8) is arranged outside the motor (6), an air inlet pipeline (9) and an air outlet pipeline (10) which are communicated with the outside of the air duct (4) are arranged on the sealing shell (8), a cooling channel (11) is formed between the motor (6) and the sealing shell (8), a centrifugal fan blade (100) is further arranged on an output shaft of the motor (6), the centrifugal fan blade (100) is located in the sealing shell (8), the centrifugal fan blade (100) comprises an annular positioning plate (1), a plurality of thermosensitive bimetallic strips (2) are arranged on the annular positioning plate (1), one ends of the thermosensitive bimetallic strips (2) are fixed on the annular positioning plate (1), the other ends of the thermosensitive bimetallic strips are connected with arc-shaped blades (3), and the arc-shaped blades (3) form a circular ring in a low-temperature state; under the high-temperature state, the thermosensitive bimetallic strip (2) deforms to drive the arc-shaped blades (3) to rotate for a plurality of angles towards the center direction of the annular positioning plate (1).
6. The axial fan for automatically preventing overheating of a motor according to claim 5, wherein: the tail of the sealing shell (8) is provided with a volute (81), the centrifugal fan blade (100) is arranged in the volute (81), and the volute (81) is connected with the air outlet pipeline (10).
7. The axial fan for automatically preventing overheating of a motor according to claim 5, wherein: a plurality of abutting parts (4) are arranged on the annular positioning plate (1), and under a high-temperature state, the arc-shaped blades (3) are respectively abutted against the abutting parts (4).
8. The axial fan for automatically preventing overheating of a motor according to claim 7, wherein: and in a high-temperature state, the abutting part (4) abuts against one end of the arc-shaped blade (3) close to the center of the annular positioning plate (1).
9. The axial fan for automatically preventing overheating of a motor according to claim 5, wherein: under the high-temperature state, the thermal sensitive bimetallic strip (2) deforms to drive the arc-shaped blades (3) to rotate 50 degrees towards the center direction of the annular positioning plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010447872.8A CN111608940B (en) | 2020-05-25 | 2020-05-25 | Centrifugal fan blade and automatic overheat-proof axial flow fan of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010447872.8A CN111608940B (en) | 2020-05-25 | 2020-05-25 | Centrifugal fan blade and automatic overheat-proof axial flow fan of motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111608940A true CN111608940A (en) | 2020-09-01 |
| CN111608940B CN111608940B (en) | 2021-05-14 |
Family
ID=72202033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010447872.8A Active CN111608940B (en) | 2020-05-25 | 2020-05-25 | Centrifugal fan blade and automatic overheat-proof axial flow fan of motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111608940B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112615482A (en) * | 2021-01-20 | 2021-04-06 | 马建山 | Self-heat-dissipation energy-saving fan |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1272645A (en) * | 1969-09-16 | 1972-05-03 | Folkes Belting Company Ltd | Fans e.g. for cooling motor vehicles |
| DE3022241A1 (en) * | 1980-06-13 | 1981-12-24 | Volkswagenwerk Ag, 3180 Wolfsburg | Cooling water pump for vehicle engine - has curved blades made of bimetallic material to vary flow to match water temp. |
| JPS61277898A (en) * | 1985-05-31 | 1986-12-08 | Matsushita Electric Ind Co Ltd | Wind blower of air conditioning device |
| JPS61286600A (en) * | 1985-06-14 | 1986-12-17 | Akaishi Kinzoku Kogyo Kk | Cooling fan made of shape memory alloy and multiblade fan of bimetal |
| JPS62142894A (en) * | 1985-12-18 | 1987-06-26 | Matsushita Electric Ind Co Ltd | Blower |
| CN2544122Y (en) * | 2001-12-25 | 2003-04-09 | 英业达股份有限公司 | Blade angle changeable radiation fan |
| JP2005076486A (en) * | 2003-08-29 | 2005-03-24 | Suzuki Motor Corp | Water pump |
| CN105756987A (en) * | 2016-04-26 | 2016-07-13 | 浙江理工大学 | Centrifugal fan device remotely controlled with Bluetooth and with blades adjustable |
-
2020
- 2020-05-25 CN CN202010447872.8A patent/CN111608940B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1272645A (en) * | 1969-09-16 | 1972-05-03 | Folkes Belting Company Ltd | Fans e.g. for cooling motor vehicles |
| DE3022241A1 (en) * | 1980-06-13 | 1981-12-24 | Volkswagenwerk Ag, 3180 Wolfsburg | Cooling water pump for vehicle engine - has curved blades made of bimetallic material to vary flow to match water temp. |
| JPS61277898A (en) * | 1985-05-31 | 1986-12-08 | Matsushita Electric Ind Co Ltd | Wind blower of air conditioning device |
| JPS61286600A (en) * | 1985-06-14 | 1986-12-17 | Akaishi Kinzoku Kogyo Kk | Cooling fan made of shape memory alloy and multiblade fan of bimetal |
| JPS62142894A (en) * | 1985-12-18 | 1987-06-26 | Matsushita Electric Ind Co Ltd | Blower |
| CN2544122Y (en) * | 2001-12-25 | 2003-04-09 | 英业达股份有限公司 | Blade angle changeable radiation fan |
| JP2005076486A (en) * | 2003-08-29 | 2005-03-24 | Suzuki Motor Corp | Water pump |
| CN105756987A (en) * | 2016-04-26 | 2016-07-13 | 浙江理工大学 | Centrifugal fan device remotely controlled with Bluetooth and with blades adjustable |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112615482A (en) * | 2021-01-20 | 2021-04-06 | 马建山 | Self-heat-dissipation energy-saving fan |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111608940B (en) | 2021-05-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8083470B2 (en) | Fan and impeller thereof | |
| JP2003328991A (en) | Turbo fan and air conditioner using the same | |
| CN111608940B (en) | Centrifugal fan blade and automatic overheat-proof axial flow fan of motor | |
| JP2004076722A (en) | Blowing fan | |
| CN111608942A (en) | Axial flow fan | |
| CN217270871U (en) | Centrifugal pump with good heat dissipation effect | |
| CN113586516B (en) | Welded high Wen Lungu, impeller using same and fan | |
| CN210343753U (en) | Box-type axial-flow fire-fighting fan | |
| CN2661975Y (en) | Heated air circulation blower | |
| CN211975510U (en) | External high-temperature fan of automobile glass hot bending furnace motor | |
| CN217176974U (en) | Fire control smoke exhaust fan convenient to heat dissipation | |
| CN204402935U (en) | Motor with air cooling direct connection boiler induced-draft fan | |
| CN220168233U (en) | Ring type air blower with good heat dissipation effect | |
| CN212253110U (en) | Assembling structure of evaporator and fan for air conditioner | |
| CN110778510A (en) | Horizontal centrifugal fan for high-temperature internal circulation | |
| KR100620522B1 (en) | Cross flow fan | |
| CN214887803U (en) | Efficient energy-saving fan convenient to maintain | |
| CN210440261U (en) | High-temperature thermal circulation fan | |
| CN111854126B (en) | Airflow circulation structure and dehumidifier | |
| CN219774381U (en) | Centrifugal fan convenient to heat dissipation | |
| JP3429473B2 (en) | Pump with motor for high temperature hydraulic pressure feed | |
| CN109424558B (en) | Gas water heater and fan assembly for gas water heater | |
| CN216111359U (en) | Hot air circulating fan | |
| CN216742044U (en) | Energy-saving centrifugal fan | |
| CN111486585A (en) | Assembling structure of evaporator and fan for air conditioner |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Tong Tong Inventor after: Ye Yongbo Inventor after: Zheng Jieqing Inventor after: Tong Haibiao Inventor after: Qiu Keming Inventor after: Sun Weijiang Inventor after: Lv Xiaofeng Inventor after: Zheng Long Inventor before: Zheng Jieqing Inventor before: Tong Haibiao Inventor before: Qiu Keming Inventor before: Sun Weijiang Inventor before: Lv Xiaofeng Inventor before: Zheng Long |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Centrifugal fan blade and axial flow fan with automatic motor overheating prevention Effective date of registration: 20221111 Granted publication date: 20210514 Pledgee: Agricultural Bank of China Limited Shaoxing Shangyu sub branch Pledgor: ZHEJIANG SHANGJIAN BLOWER FAN CO.,LTD. Registration number: Y2022330003037 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20210514 Pledgee: Agricultural Bank of China Limited Shaoxing Shangyu sub branch Pledgor: ZHEJIANG SHANGJIAN BLOWER FAN CO.,LTD. Registration number: Y2022330003037 |