CN114607648A - Axial flow fan for refrigeration house based on automatic temperature control module - Google Patents

Axial flow fan for refrigeration house based on automatic temperature control module Download PDF

Info

Publication number
CN114607648A
CN114607648A CN202210146093.3A CN202210146093A CN114607648A CN 114607648 A CN114607648 A CN 114607648A CN 202210146093 A CN202210146093 A CN 202210146093A CN 114607648 A CN114607648 A CN 114607648A
Authority
CN
China
Prior art keywords
buckle
fan
control module
temperature control
automatic temperature
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
Application number
CN202210146093.3A
Other languages
Chinese (zh)
Other versions
CN114607648B (en
Inventor
陈洁
宋永平
宋俊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Maer Fan Motor Co ltd
Original Assignee
Zhejiang Maer Fan Motor Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhejiang Maer Fan Motor Co ltd filed Critical Zhejiang Maer Fan Motor Co ltd
Priority to CN202210146093.3A priority Critical patent/CN114607648B/en
Priority claimed from CN202210146093.3A external-priority patent/CN114607648B/en
Publication of CN114607648A publication Critical patent/CN114607648A/en
Application granted granted Critical
Publication of CN114607648B publication Critical patent/CN114607648B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/70Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/701Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
    • F04D29/703Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/004Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/60Mounting; Assembling; Disassembling
    • F04D29/64Mounting; Assembling; Disassembling of axial pumps
    • F04D29/644Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/66Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/668Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

The utility model provides an automatic temperature control module-based axial flow fan for a refrigeration house, and belongs to the technical field of machinery. It has solved prior art and has had the poor problem of stability. This axial fan for freezer based on automatic temperature control module includes cylindric fan body and connects the connecting seat in the fan body outside, automatic temperature control module has in the above-mentioned connecting seat, still include the screen panel, buckle one, buckle two and locking structure, this tip department of fan is connected to above-mentioned screen panel, the inner of above-mentioned buckle one and buckle two all links firmly in screen panel both sides department, buckle one and buckle two respectively the lock in fan body both sides, above-mentioned connecting seat links firmly in the buckle one outside, above-mentioned locking structure overlaps on buckle one and buckle two, buckle one has the trend of leaning on with the fan body outside under locking structure's effect, buckle two has the trend of leaning on with the fan body. This axial fan for freezer based on automatic temperature control module stability is high.

Description

Axial flow fan for refrigeration house based on automatic temperature control module
Technical Field
The utility model belongs to the technical field of machinery, and relates to an axial flow fan for a refrigeration house based on an automatic temperature control module.
Background
The arrangement of the axial flow fan for the refrigeration house can quickly reduce the temperature in the refrigeration house, the automatic temperature control module is arranged on the side part of the axial flow fan for improving the applicability, and the automatic temperature control module improves the rotating speed of the axial flow fan when the temperature in the refrigeration house is higher, so that the temperature in the refrigeration house can be quickly reduced. When the temperature in the refrigeration house is lower, the automatic temperature control module properly reduces the rotating speed of the axial flow fan and reduces the energy consumption of the fan.
However, automatic temperature control module directly passes through the fastener and connects in the fan body outside among the current axial fan, and it is firm to connect, nevertheless dismantles loaded down with trivial details.
Its publication of chinese patent CN214669140U provides a fan rotational speed detection device and fan system, and this fan rotational speed detection device is applied to fan rotational speed detection technical field, includes: the device comprises an infrared sensor, a comparator, a counter and a processing unit; the infrared sensor is respectively connected with the comparator and the processing unit; the comparator is connected with the counter, the counter is connected with the processing unit, and a transmitting/receiving port of the infrared sensor is aligned with fan blades of the fan.
The fan rotating speed detection device is not affected by fan current and fan line faults, so that the safety of the fan rotating speed detection device can be effectively guaranteed, and the detection precision is guaranteed. On the other hand, the infrared sensor only needs to be aligned with fan blades of the fan, and does not need to be connected with a fan line, so that the infrared sensor is simple and convenient to install.
However, each modular unit is directly and fixedly connected to the fan, and as the modular units are more, the structure of the fan is not compact, the modular units are generally connected with the fan body through fasteners, and the problem of complex disassembly between the modular units and the fan body exists.
Disclosure of Invention
The utility model aims to solve the problems in the prior art and provide the axial flow fan for the refrigeration house based on the automatic temperature control module, which is convenient to assemble and disassemble and has a stable structure.
The purpose of the utility model can be realized by the following technical scheme:
the utility model provides an axial fan for freezer based on automatic temperature control module, include cylindric fan body and connect the connecting seat in the fan body outside, automatic temperature control module has in the above-mentioned connecting seat, a serial communication port, still include the screen panel, buckle one, buckle two and locking structure, this tip department of fan is connected to above-mentioned screen panel, the inner of above-mentioned buckle one and buckle two all links firmly in screen panel both sides department, buckle one and two difference locks of buckle are in fan body both sides, above-mentioned connecting seat links firmly in buckle one outside, above-mentioned locking structure overlaps on buckle one and buckle two, buckle one has the trend of leaning on with the fan body outside under locking structure's effect, buckle two has the trend of leaning on with the fan body.
This axial fan for freezer based on automatic temperature control module is creative connects buckle one and buckle two respectively in fan body both sides, because the screen panel is connected in buckle one and two inner of buckle, and locking structure connects in buckle one and two outer ends of buckle, and such structure can be finally with screen panel and the stable connection of connecting seat on the fan body.
The screen panel is located the air inlet end of fan body, can play the guard action through the screen panel. The stable connection of connecting seat is in the fan body outside, and automatic temperature control module can be according to the actual temperature control axial fan's in the freezer rotational speed.
That is to say, when the temperature is than higher in the freezer, automatic temperature control module improves fan rotational speed, realizes rapid cooling. When the temperature in the refrigeration house is lower, the automatic temperature control module reduces the rotating speed of the fan and reduces the operation energy consumption of the fan.
In the axial flow fan for the refrigeration house based on the automatic temperature control module, the first buckle plate is arc-shaped and is in contact with the outer side surface of the fan body.
In the axial flow fan for the refrigeration house based on the automatic temperature control module, the second buckle plate is arc-shaped and is in contact with the outer side surface of the fan body.
The first buckle plate and the second buckle plate are both in contact with the outer side face of the fan body, and therefore the connection stability of the fan body and the first buckle plate and the second buckle plate can be effectively improved.
In foretell axial fan for freezer based on automatic temperature control module, buckle one and buckle two all are located fan body middle part department, and above-mentioned buckle one links firmly with the screen panel through being shaft-like linkage segment one, and above-mentioned buckle two links firmly with the screen panel through being shaft-like linkage segment two.
The first connecting section and the second connecting section are provided with two functions:
the length of the pinch plate I and the pinch plate II is reduced, and the material consumption is reduced;
and the rod-shaped connecting section I and the rod-shaped connecting section II can be properly deformed, so that the buckling plate I and the buckling plate II can be smoothly connected to the fan body.
In the axial flow fan for the refrigeration house based on the automatic temperature control module, the connecting seat is positioned in the middle of the pinch plate.
In foretell axial fan for freezer based on automatic temperature control module, locking structure includes buffer cylinder and holding ring, and above-mentioned buffer cylinder is flexible material and buffer cylinder cover on buckle one and buckle two, and above-mentioned holding ring cover is on buckle one and buckle two and holding ring and buckle one and two threaded connection of buckle, and above-mentioned buffer cylinder is compressed tightly between connecting seat and holding ring.
And the buffer cylinder and the positioning ring are connected on the first buckle plate and the second buckle plate, so that the first buckle plate and the second buckle plate are connected outside the fan body more stably.
In the axial flow fan for the refrigeration house based on the automatic temperature control module, the buffer cylinder is made of rubber materials.
The buffer cylinder made of rubber materials can avoid the rigid contact between the positioning ring and the connecting seat.
In the axial flow fan for the refrigeration house based on the automatic temperature control module, the axial flow fan further comprises a pre-tightening ring which is annular and has elasticity, the pre-tightening ring comprises an annular body, a through notch is formed in the body, a pre-tightening end I and a pre-tightening end II of the pre-tightening ring are respectively arranged on two sides of the notch, the pre-tightening end I and the pre-tightening end II are respectively located at the upper portion and the lower portion of the pre-tightening ring, the pre-tightening end I is abutted against the buffer cylinder, and the pre-tightening end II is abutted against the positioning ring.
Because the first pretightening end of the pretightening ring is abutted against the buffer cylinder, the second pretightening end is abutted against the positioning ring, and the whole pretightening ring has elasticity, the positioning ring can be more stably connected to the first pinch plate and the second pinch plate under the elastic action.
In foretell axial fan for freezer based on automatic temperature control module, a buckle inboard has the felt piece, and above-mentioned felt piece is compressed tightly between buckle one and fan body.
In the axial flow fan for the refrigeration house based on the automatic temperature control module, the inner side of the second buckle plate is provided with a felt sheet, and the felt sheet is tightly pressed between the second buckle plate and the fan body.
The arrangement of the felt sheet can improve the connection stability between the first buckle plate and the fan body, and meanwhile, the connection stability between the second buckle plate and the fan body can also be improved.
Compared with the prior art, this axial fan for freezer based on automatic temperature control module is owing to enable screen panel and connecting seat homoenergetic stable connection on the fan body under the effect of buckle one and buckle two to area of contact is big between buckle one, buckle two and the fan body, and its connection stability is high, compact structure.
The connection stability of buckle one, buckle two and fan body can not only be further improved under the locking structure effect, but also can be with the stable connection of screen panel at this end of body of fan, and the connecting seat setting is on buckle one, and it is convenient to be connected between automatic temperature control module and the connecting seat, and whole axial fan loading and unloading is also simple and convenient quick, has very high practical value.
Drawings
Fig. 1 is a schematic top view of an axial flow fan for a refrigerator based on an automatic temperature control module.
Fig. 2 is a schematic front view structure diagram of the axial flow fan for the refrigeration house based on the automatic temperature control module.
Fig. 3 is a schematic structural diagram of a pretensioning ring in an axial flow fan for a refrigeration house based on an automatic temperature control module.
In the figure, 1, a fan body; 2. a connecting seat; 3. buckling a plate I; 4. a second buckle plate; 5. a buffer cylinder; 6. a positioning ring; 7. pre-tightening the ring; 7a, a first pre-tightening end; 7b, a second pre-tightening end; 8. a felt sheet; 9. a mesh enclosure; 10. a first connecting section; 11. and a second connecting section.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent 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 obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
It will be understood that when an element is referred to as being "mounted on" another element, it can be directly mounted on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 and 2 and fig. 3, this axial fan for freezer based on automatic temperature control module includes cylindric fan body 1 and connects the connecting seat 2 in the 1 outside of fan body, automatic temperature control module has in above-mentioned connecting seat 2, still include screen panel 9, buckle one 3, buckle two 4 and locking structure, above-mentioned screen panel 9 is connected in 1 tip department of fan body, the inner of above-mentioned buckle one 3 and buckle two 4 all links firmly in screen panel 9 both sides department, buckle one 3 and buckle two 4 lock respectively in fan body 1 both sides, above-mentioned connecting seat 2 links firmly in the buckle one 3 outside, above-mentioned locking structure overlaps on buckle one 3 and buckle two 4, buckle one 3 has the trend that leans on in with the 1 outside of fan body under locking structure's effect, buckle two 4 has the trend that leans on with fan body 1.
The first buckle plate 3 is arc-shaped and the first buckle plate 3 is in contact with the outer side face of the fan body 1.
The second buckle plate 4 is arc-shaped and the second buckle plate 4 is in contact with the outer side face of the fan body 1.
The first buckle plate 3 and the second buckle plate 4 are both located in the middle of the fan body 1, the first buckle plate 3 is fixedly connected with the mesh enclosure 9 through the first rod-shaped connecting section 10, and the second buckle plate 4 is fixedly connected with the mesh enclosure 9 through the second rod-shaped connecting section 11.
The connecting seat 2 is positioned in the middle of the first pinch plate 3.
Locking structure includes buffer cylinder 5 and holding ring 6, and above-mentioned buffer cylinder 5 is flexible material and 5 covers on buckle one 3 and buckle two 4 for buffer cylinder, and 6 covers of above-mentioned holding ring are on buckle one 3 and buckle two 4 and holding ring 6 and buckle one 3 and buckle two 4 threaded connection, and above-mentioned buffer cylinder 5 is compressed tightly between connecting seat 2 and holding ring 6.
The buffer cylinder 5 is made of rubber materials.
The elastic pre-tightening ring 7 is annular, the pre-tightening ring 7 comprises an annular body, a through notch is formed in the body, a pre-tightening end I7 a and a pre-tightening end II 7b of the pre-tightening ring 7 are arranged on two sides of the notch respectively, the pre-tightening end I7 a and the pre-tightening end II 7b are located on the upper portion and the lower portion of the pre-tightening ring 7 respectively, the pre-tightening end I7 a abuts against the buffer cylinder 5, and the pre-tightening end II 7b abuts against the positioning ring 6.
The inner side of the pinch plate I3 is provided with a felt piece 8, and the felt piece 8 is tightly pressed between the pinch plate I3 and the fan body 1.
And a felt piece 8 is arranged on the inner side of the second buckle plate 4, and the felt piece 8 is tightly pressed between the second buckle plate 4 and the fan body 1.
This axial fan is creative for freezer connects in fan body both sides with buckle one and buckle two respectively based on automatic temperature control module, because the screen panel is connected in buckle one and two inner of buckle, and locking structure connects in buckle one and two outer ends of buckle, and such structure can be finally with the stable connection of screen panel and connecting seat on the fan body.
The screen panel is located the air inlet end of fan body, can play the guard action through the screen panel. The stable connection of connecting seat is in the fan body outside, and automatic temperature control module can be according to the actual temperature control axial fan's in the freezer rotational speed.
That is to say, when the temperature is than higher in the freezer, automatic temperature control module improves the fan rotational speed, realizes rapid cooling. When the temperature in the refrigeration house is lower, the automatic temperature control module reduces the rotating speed of the fan and reduces the operation energy consumption of the fan.
The features of the above-described embodiments may be arbitrarily combined, and for the sake of brevity, all possible combinations of the features in the above-described embodiments are not described, but should be construed as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the features.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that suitable changes and modifications of the above embodiments are within the scope of the claimed invention as long as they are within the spirit and scope of the present invention.

Claims (10)

1. The utility model provides an axial fan for freezer based on automatic temperature control module, include cylindric fan body and connect the connecting seat in the fan body outside, automatic temperature control module has in the above-mentioned connecting seat, a serial communication port, still include the screen panel, buckle one, buckle two and locking structure, this tip department of fan is connected to above-mentioned screen panel, the inner of above-mentioned buckle one and buckle two all links firmly in screen panel both sides department, buckle one and two difference locks of buckle are in fan body both sides, above-mentioned connecting seat links firmly in the buckle one outside, above-mentioned locking structure overlaps on buckle one and buckle two, buckle one has the trend that leans on with the fan body outside under locking structure's effect, buckle two have the trend that leans on with the fan body.
2. The axial flow fan for the refrigerator based on the automatic temperature control module is characterized in that the first buckling plate is arc-shaped and is in contact with the outer side face of the fan body.
3. The automatic temperature control module-based axial flow fan for the refrigerator according to claim 2, wherein the second buckle plate is arc-shaped and contacts with the outer side surface of the fan body.
4. The axial flow fan for the refrigerator based on the automatic temperature control module according to claim 3, wherein the first buckling plate and the second buckling plate are both located at the middle part of the fan body, the first buckling plate is fixedly connected with the mesh enclosure through the first rod-shaped connecting section, and the second buckling plate is fixedly connected with the mesh enclosure through the second rod-shaped connecting section.
5. The automatic temperature control module-based axial flow fan for the refrigerator according to claim 4, wherein the connecting seat is located at a middle part of the buckle plate.
6. The axial flow fan for the refrigeration house based on the automatic temperature control module according to claim 5, wherein the locking structure comprises a buffer cylinder and a positioning ring, the buffer cylinder is made of flexible material and is sleeved on the first buckling plate and the second buckling plate, the positioning ring is sleeved on the first buckling plate and the second buckling plate and is in threaded connection with the first buckling plate and the second buckling plate, and the buffer cylinder is tightly pressed between the connecting seat and the positioning ring.
7. The automatic temperature control module-based axial flow fan for the refrigerator according to claim 6, wherein the buffer cylinder is made of a rubber material.
8. The axial flow fan for the refrigeration house based on the automatic temperature control module according to claim 7, further comprising an annular elastic pre-tightening ring, wherein the pre-tightening ring comprises an annular body, a through notch is formed in the body, a first pre-tightening end and a second pre-tightening end of the pre-tightening ring are respectively arranged on two sides of the notch, the first pre-tightening end and the second pre-tightening end are respectively located on the upper portion and the lower portion of the pre-tightening ring, the first pre-tightening end abuts against the buffer cylinder, and the second pre-tightening end abuts against the positioning ring.
9. The axial flow fan for the refrigerator based on the automatic temperature control module as claimed in claim 8, wherein a felt sheet is provided at an inner side of the pinch plate, and the felt sheet is tightly pressed between the pinch plate and the fan body.
10. The axial flow fan for the refrigerator based on the automatic temperature control module is characterized in that a felt sheet is arranged on the inner side of the second buckling plate, and the felt sheet is tightly pressed between the second buckling plate and the fan body.
CN202210146093.3A 2022-02-17 Axial flow fan for freezer based on automatic temperature control module Active CN114607648B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210146093.3A CN114607648B (en) 2022-02-17 Axial flow fan for freezer based on automatic temperature control module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210146093.3A CN114607648B (en) 2022-02-17 Axial flow fan for freezer based on automatic temperature control module

Publications (2)

Publication Number Publication Date
CN114607648A true CN114607648A (en) 2022-06-10
CN114607648B CN114607648B (en) 2024-06-07

Family

ID=

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205858736U (en) * 2016-06-04 2017-01-04 上虞广通风机有限公司 A kind of wall type fan
CN212028108U (en) * 2020-04-09 2020-11-27 上海进贤机电科技有限公司 Utility tunnel is with explosion-proof smoke exhaust fan structure of large-scale axial compressor of perpendicular installation
CN212615486U (en) * 2020-06-19 2021-02-26 青州飞腾温控机械有限公司 Special anticorrosive suspension type fan in vaccary
CN213016960U (en) * 2020-07-27 2021-04-20 绍兴上虞上安风机有限公司 Axial fan with fire prevention function
CN213775855U (en) * 2020-11-25 2021-07-23 杭州帅途金属制品有限公司 Anti-drop fan screen panel

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205858736U (en) * 2016-06-04 2017-01-04 上虞广通风机有限公司 A kind of wall type fan
CN212028108U (en) * 2020-04-09 2020-11-27 上海进贤机电科技有限公司 Utility tunnel is with explosion-proof smoke exhaust fan structure of large-scale axial compressor of perpendicular installation
CN212615486U (en) * 2020-06-19 2021-02-26 青州飞腾温控机械有限公司 Special anticorrosive suspension type fan in vaccary
CN213016960U (en) * 2020-07-27 2021-04-20 绍兴上虞上安风机有限公司 Axial fan with fire prevention function
CN213775855U (en) * 2020-11-25 2021-07-23 杭州帅途金属制品有限公司 Anti-drop fan screen panel

Similar Documents

Publication Publication Date Title
CN206664924U (en) Aircraft and its propeller device for quickly disassembling, propeller, propeller mount component
EP0754580B1 (en) Air vent
WO2004018946A3 (en) Integrated dual circuit evaporator
CN114607648A (en) Axial flow fan for refrigeration house based on automatic temperature control module
CN1809291A (en) Fan-exposed type air-conditioned garment fan attaching device and fan-exposed type air-conditioned garment ventilator
CN114607648B (en) Axial flow fan for freezer based on automatic temperature control module
US20030129065A1 (en) Air compressor, air storage, and high pressure cleaning machine structure
US20050206613A1 (en) Method and system for power management of an optical mouse
CN208442046U (en) Blower and household electrical appliance
CN105498066A (en) Low-pressure large-flux ratio control quick response device and quick response control valve thereof
CN109139523A (en) Two fans structure
CN208278905U (en) A kind of plate tipping arrangement easily assembled
CN107294266B (en) Motor assembly and air conditioner
CN206283358U (en) The loosing-proof device of tooth case and motor
US20230304502A1 (en) Built-in electric air pump
CN209654273U (en) A kind of box fan
CN219428084U (en) Side defrosting air port and automobile
CN209586754U (en) Two fans structure
CN208816383U (en) A kind of idle call energy-saving low-noise fan
CN214403915U (en) High-low air pressure dual-purpose electric pump
CN220470226U (en) Two-stage normal pressure double-screw air compressor with air inlet mechanism
CN219827236U (en) Centrifugal wind wheel fixing structure
CN213808016U (en) Diaphragm assembly of chemical diaphragm pump
CN216868679U (en) Energy-saving heat-shielding outer cover for air conditioner
CN112407750B (en) Positioning mechanism for connecting shaft and contact cylinder in conveying roller

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