CN113056178B - Fresh air device and BBU cabinet - Google Patents
Fresh air device and BBU cabinet Download PDFInfo
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- CN113056178B CN113056178B CN202110321446.4A CN202110321446A CN113056178B CN 113056178 B CN113056178 B CN 113056178B CN 202110321446 A CN202110321446 A CN 202110321446A CN 113056178 B CN113056178 B CN 113056178B
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 15
- 238000003756 stirring Methods 0.000 claims description 14
- 238000009423 ventilation Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 7
- 239000004020 conductor Substances 0.000 claims description 4
- 230000017525 heat dissipation Effects 0.000 abstract description 5
- 230000000712 assembly Effects 0.000 abstract description 2
- 238000000429 assembly Methods 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000010485 coping Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20209—Thermal management, e.g. fan control
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Ventilation (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a fresh air device and a BBU cabinet, and relates to the technical field of heat dissipation equipment; the fresh air device comprises a plurality of groups of temperature regulating assemblies and a frame; the frame is rotatably provided with a blade assembly; a fan assembly is arranged on one side of the frame and comprises a fan circuit and a fan connected with the fan circuit; the fan circuit is provided with a voltage reducing module which is connected with a first circuit breaking part in parallel; the driving end of the rotating device is fixedly connected with a first conducting piece. When the indoor temperature is regulated, if the temperature reaches a preset threshold value, the rotating end of the corresponding rotating device drives the blades to rotate by a preset opening angle, so that air can circulate through the opened blades, on the other hand, the first conducting piece is driven to rotate according to the rotating end of the rotating device, and the opening and closing of the first circuit breaking part are regulated, so that the voltage provided by a fan circuit to the fan is regulated, the rotating speed of the fan is regulated, the investment of complex control elements is reduced, the cost can be reduced, and the cost can be reduced while various working conditions can be accurately processed.
Description
Technical Field
The invention relates to the technical field of heat dissipation equipment, in particular to a fresh air device and a BBU cabinet.
Background
With the continuous improvement of the national informatization level, various services in the communication industry rapidly develop, with the rapid expansion of the traffic and the network scale, the advocations of the Internet of things, big data and large capacity and the popularization of the 4G mobile network and the subsequent 5G mobile network, the heat dissipation capability of the cabinet machine room of the existing base station is provided with higher requirements. Therefore, when the heat exchange equipment is used for cooling, the fresh air system is also introduced for cooling, namely, the fresh air system is singly used, or the fresh air system is combined with the heat exchange system, so that the outdoor cabinet is transformed and upgraded, and the market potential is huge.
In the fresh air system in the prior art, a temperature sensor is generally adopted to control the rotating speed of a fan, the temperature sensor generates a temperature signal after detecting the indoor temperature, a main control module of the fresh air system analyzes the temperature signal after receiving the temperature signal, and then the rotating speed of the fan is adjusted according to the temperature signal, so that the fresh air system can accurately process various working conditions by inputting a high-cost main control module; if the fan rotating speed is controlled only through the temperature control switch, the fresh air system cannot be matched with various working conditions, and the actual requirements are not met. Therefore, it is necessary to develop a fresh air device, which can accurately process various working conditions and reduce the cost.
Disclosure of Invention
The invention aims to provide a fresh air device and a BBU cabinet, which are used for solving the problem that the existing fresh air system cannot accurately process various working conditions and has low cost.
To achieve the purpose, the invention adopts the following technical scheme:
a fresh air device comprises a plurality of groups of temperature regulating components and a frame which is used for being installed on a ventilation opening;
the blade assembly is rotatably arranged on the frame and comprises a plurality of blades which are arranged in parallel and can synchronously rotate; the temperature adjusting component is used for detecting the temperature of the current environment and correspondingly adjusting the opening and closing angles of the blades according to the temperature of the current environment;
the temperature adjusting assembly comprises a rotating device, wherein the driving end of the rotating device is fixedly connected with one end of the blade assembly and is used for driving the blade to rotate to a preset opening and closing angle when the detected temperature reaches a preset temperature threshold value;
a fan assembly is arranged on one side of the frame and comprises a fan circuit and a fan connected with the fan circuit; the fan circuit is internally provided with a voltage reducing module which is connected with a first circuit breaking part in parallel; the driving end of the rotating device is fixedly connected with a first conducting piece which is used for rotating along with the driving end to conduct the first circuit breaking part.
Optionally, the voltage reducing module is further connected in series with a second circuit breaking part, and the driving end of the rotating device is fixedly connected with a second conducting piece which is used for rotating along with the driving end to conduct the second circuit breaking part.
Optionally, the number of the step-down modules is multiple, and the step-down modules are mutually connected in series.
Optionally, the first breaking part and the second breaking part are conductive parts with an opening formed by middle breaking;
the first conducting piece and the second conducting piece comprise insulating parts fixedly connected to the driving end of the rotating device, and one side, away from the driving end, of the insulating parts is provided with a conductor part which can be embedded in the opening.
Optionally, the first circuit breaking part is a first switch, and the second circuit breaking part is a second switch connected in series with the voltage reducing module;
the first conduction piece and the second conduction piece comprise stirring parts fixedly connected to the driving end of the rotating device, the stirring parts of the first conduction piece are used for rotating along with the driving end to drive the first switch to be closed, and the stirring parts of the second conduction piece are used for rotating along with the driving end to drive the second switch to be closed.
Optionally, the step-down module includes the adjusting terminal that is used for adjusting pressure drop, rotary device's drive end still fixedly connected with is used for stirring adjusting terminal's regulating block.
Optionally, the rotating device is electrically connected with a temperature control switch; the temperature control switch is used for starting the rotating device when the detected temperature reaches a preset temperature threshold value.
Optionally, the rotating device is a motor or a rotating cylinder.
Optionally, a transmission device is connected between the driving end of the rotating device and the blade of the blade assembly, and the transmission device comprises a blade connecting piece and a linkage rod;
the blade connecting piece is fixedly connected to the blade, the linkage rod is provided with a blade connecting part in a protruding mode corresponding to the blade connecting piece, and the blade connecting part is in rotary connection with the corresponding blade connecting piece;
the linkage rod is also provided with a rotary connecting part, and the rotary connecting part is connected with the driving end through a connecting rod.
Optionally, the blades correspondingly connected with the same rotating device are arranged at intervals, and gaps for inserting the blades correspondingly connected with other rotating devices are reserved between every two blades.
The BBU cabinet comprises a ventilation opening and the fresh air device, wherein the frame of the fresh air device is installed on the ventilation opening.
Compared with the prior art, the invention has the following beneficial effects:
according to the fresh air device and the BBU cabinet provided by the invention, when the indoor temperature is regulated, if the temperature reaches the preset threshold value, the rotating end of the corresponding rotating device drives the blades to rotate by the preset opening angle, so that air can circulate through the opened blades, and on the other hand, the first conducting piece is driven to rotate according to the rotating end of the rotating device, and the opening and closing of the first circuit breaking part is regulated, so that the voltage provided by the fan circuit to the fan is regulated, the rotating speed of the fan is regulated, the investment of complex control elements is reduced, the cost can be reduced, and the cost can be reduced while various working conditions can be accurately processed.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
The structures, proportions, sizes, etc. shown in the drawings are shown only in connection with the present disclosure, and are not intended to limit the scope of the invention, since any modification, variation in proportions, or adjustment of the size, etc. of the structures, proportions, etc. should be considered as falling within the spirit and scope of the invention, without affecting the effect or achievement of the objective.
FIG. 1 is a schematic diagram of the overall structure of a fresh air device according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a fan assembly according to an embodiment of the present invention;
fig. 3 is a schematic view of a blade opening and closing principle according to an embodiment of the present invention;
fig. 4 is a schematic view of a partial enlarged structure at a of fig. 3.
Illustration of: 1. a frame; 2. a blade assembly; 3. a rotating device; 31. a temperature control switch; 4. a fan assembly; 41. a blower; 5. a fan circuit; 51. a first circuit breaker; 52. a second circuit breaker; 53. a buck module; 61. a blade connection; 62. a linkage rod; 621. blade connection.
Detailed Description
In order to make the objects, features and advantages of the present invention more comprehensible, the technical solutions in the embodiments of the present invention are described in detail below with reference to the accompanying drawings, and it is apparent that the embodiments described below are only some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. It is noted that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
Referring to fig. 1 to 4, fig. 1 is a schematic overall structure of a fresh air device provided by an embodiment of the present invention, fig. 2 is a schematic structural diagram of a fan assembly according to an embodiment of the present invention, fig. 3 is a schematic principle of opening and closing a blade provided by an embodiment of the present invention, and fig. 4 is a schematic partial enlarged structural diagram of a portion a shown in fig. 3.
Example 1
The fresh air device provided by the embodiment of the invention relates to the technical field of heat dissipation equipment, can accurately process various working conditions, and has the characteristics of low overall cost and high cost performance.
As shown in fig. 1 and 2, the fresh air device comprises a plurality of groups of temperature regulating assemblies and a frame 1 for being mounted on a ventilation opening.
The frame 1 is rotatably provided with a blade assembly 2, and the blade assembly 2 comprises a plurality of blades which are arranged in parallel and can synchronously rotate; the temperature adjusting component is used for detecting the temperature of the current environment and correspondingly adjusting the opening and closing angles of the blades according to the temperature of the current environment.
The temperature regulating assembly comprises a rotating device 3, and the driving end of the rotating device 3 is fixedly connected with one end of the blade assembly 2 and used for driving the blades to rotate to a preset opening and closing angle when the detected temperature reaches a preset temperature threshold value.
A fan assembly 4 is arranged on one side of the frame 1, and the fan assembly 4 comprises a fan circuit 5 and a fan 41 connected with the fan circuit 5; the fan circuit 5 is provided with a voltage reducing module 53, and the voltage reducing module 53 is connected with a first circuit breaking part 51 in parallel; the driving end of the rotating device 3 is fixedly connected with a first conducting member for rotating along with the driving end to conduct the first circuit breaking part 51.
Specifically, when the indoor temperature is adjusted, if the temperature reaches a preset threshold value, the rotating end of the corresponding rotating device 3 drives the blades to rotate by a preset opening angle, so that air can circulate through the opened blades, and on the other hand, the first conducting piece is driven to rotate according to the rotating end of the rotating device 3 to adjust the opening and closing of the first circuit breaking part 51, so that the voltage supplied to the fan 41 by the fan circuit is adjusted, the rotating speed of the fan 41 is adjusted, the investment of complex control elements is reduced, the cost can be reduced, and the cost can be reduced while various working conditions can be accurately processed.
Further, as shown in fig. 2, the voltage reducing module 53 is further connected in series with a second circuit breaker 52, and the driving end of the rotating device 3 is fixedly connected with a second conducting member for rotating along with the driving end to conduct the second circuit breaker 52. Through the setting of the second circuit breaker 52, the starting temperature of the fan 41 can be preset, when the environment is lower than the starting temperature, the fan 41 does not work, and once the environment is higher than the starting temperature, the driving end of the rotating device 3 drives the second conducting piece to rotate, so that the second circuit breaker 52 is conducted, and the power supply supplies power to the fan 41.
In a specific embodiment, the number of the voltage reducing modules 53 is plural, and the voltage reducing modules 53 are connected in series. Each voltage reducing module 53 corresponds to one first circuit breaking part 51, each circuit breaking part 51 corresponds to a first conducting piece of a rotating device 3, and the fresh air device can be regulated step by step through the arrangement of the voltage reducing modules 53. It should be noted that the voltage dropping module 53 may be a voltage dropping resistor, a voltage dropping module, etc., and has the advantages of low control cost, high cost performance, etc.
In a specific embodiment, the first breaking portion 51 and the second breaking portion 52 are conductive portions having an opening formed therebetween. For example, the conductive part is solder provided on the PCB board, and an opening is formed in the middle of the solder, and when the opening is connected by a conductor, a circuit at the opening is conducted.
The first conducting piece and the second conducting piece comprise insulating parts fixedly connected to the driving end of the rotating device 3, and one side, far away from the driving end, of the insulating parts is provided with a conductor part which can be embedded in the opening.
In another specific embodiment, the first breaking portion 51 is a first switch, and the second breaking portion 52 is a second switch connected in series with the step-down module 53. The first switch and the second switch can be a key switch, a single-pole single-throw switch, a slide rheostat and the like.
The first conducting piece and the second conducting piece comprise stirring parts fixedly connected to the driving end of the rotating device 3, the stirring parts of the first conducting piece are used for rotating along with the driving end to drive the first switch to be closed, and the stirring parts of the second conducting piece are used for rotating along with the driving end to drive the second switch to be closed.
Further, the voltage reducing module 53 includes an adjusting terminal for adjusting voltage drop, and the driving end of the rotating device 3 is fixedly connected with an adjusting block for stirring the adjusting terminal. For example, when the driving end of the rotating device 3 rotates, the adjusting terminal can be driven to rotate, so that the pressure drop of the pressure reducing module 53 is adjusted, stepless adjustment of the rotating speed of the fan 41 is further realized, and the fresh air device has the advantages of smooth transition and high stability in the speed adjusting process. It should be added that the adjusting block is used for stirring the adjusting terminal without limitation, and not only can be provided with a gear, a connecting rod and other transmission components between the adjusting block and the adjusting terminal to transfer the acting force of the rotating device 3 to the adjusting terminal, but also can be used for directly extending the adjusting block and directly stirring the adjusting terminal.
Specifically, the rotating device 3 is electrically connected to a temperature control switch 31; the temperature control switch 31 is used to activate the rotation means 3 when the detected temperature reaches a preset temperature threshold. As shown in fig. 1, each rotating device 3 may correspond to a temperature control switch 31, or only one temperature control switch 31 may be provided, and the electric cabinet sends a temperature value signal back through the temperature control switch 31 to send an action sequence signal to the rotating device 3.
If the temperature control switch is made to directly control the rotating device circuit and the fan circuit 5, the factors of the different supply voltages and loads of the access circuit of the rotating device 3 and the fan circuit 5 affect the overall control accuracy of the fresh air device, so that the overall control accuracy of the fresh air device can be ensured in a low-cost manner through the first conducting piece and the first circuit breaking part 51, and various working conditions can be matched.
Specifically, the rotating device 3 is a motor or a rotary cylinder.
Further, as shown in fig. 3 and 4, a transmission device is connected between the driving end of the rotating device 3 and the blade of the blade assembly 2, and the transmission device comprises a blade connecting piece 61 and a linkage rod 62.
The blade connecting piece 61 is fixedly connected to the blade, the linkage rod 62 is provided with a blade connecting part 621 corresponding to the blade connecting piece 61 in a protruding mode, and the blade connecting part 621 is connected with the corresponding blade connecting piece 61 in a rotating mode.
The link lever 62 is further provided with a rotary connection portion connected to the driving end through a connecting rod. The blade of the device is adjusted without the investment of an angle adjusting actuator, an angle switch, a control main board and other elements, and the device has the advantage of low cost.
Further, the blades correspondingly connected with the same rotating device 3 are arranged at intervals, and gaps for inserting the blades correspondingly connected with other rotating devices 3 are reserved between every two blades.
Next, a specific operation mode description of the fresh air device is combined: three temperature thresholds are preset, namely 30 degrees (+ -4 degrees), 45 degrees (+ -4 degrees) and 55 degrees (+ -4 degrees) respectively; when the temperature is higher than 30 °, only one rotating device 3 is started, so that 1/3 blades of the blade assembly 2 are driven to be opened, and the second circuit breaking part 52 is closed, at the moment, the voltage drop modules 53 are all connected in series in the circuit, and the fan 41 operates at the minimum rotation speed. When the temperature is higher than 45 deg., the other rotating means 3 is activated, the other 1/3 blades of the starting blade assembly 2 are opened (2/3 blades are opened in total), one of the first breaking parts 51 is closed, and one of the pressure drop modules 53 is short-circuited, and the fan 41 operates at a faster speed. When the temperature is higher than 55 deg., the last rotating device 3 is started, the last 1/3 blade of the driving blade assembly 2 is opened (at this time, the blades are all opened), the power supply directly supplies power to the fan 41, and the fan 41 rotates at the maximum rotation speed.
Example two
Other modes of the fresh air device exist, such as presetting three temperature thresholds of 30 ° (±4°), 45 ° (±4°) and 55 ° (±4°); when the temperature is higher than 30 ℃, only one rotating device 3 is started to drive 1/3 blades of the blade assembly 2 to be opened, one of the first breaking parts 51 is closed, the second breaking part 52 is still in an open state, the fan circuit 5 is not conducted, and the fan 41 does not work to rotate. When the temperature is higher than 45 deg., the other rotating means 3 is activated, the other 1/3 blades of the starting blade assembly 2 are opened (2/3 blades are opened in total), the second breaking portion 52 is closed, and at this time one of the pressure drop modules 53 is short-circuited, and the blower 41 operates at a faster speed. When the temperature is higher than 55 deg., the last rotating means 3 is activated, the last 1/3 of the blades of the driving blade assembly 2 are opened (at this time, the blades are all opened), and the other first breaking part 51 is closed, the power source directly supplies power to the blower 41, and the blower 41 rotates at the maximum rotation speed. Therefore, when the temperature is lower, only the blades are opened for ventilation, and the fan does not rotate, so that the effect of saving more energy is achieved.
It should be understood that the number of the rotating devices 3 is not limited, and the more the fresh air device has gears as the number of the temperature adjusting components increases. Meanwhile, when the rotating device 3 can adjust the pressure drop of the pressure reducing module 53, the fan 41 of the fresh air device can have a stepless speed change function only by adjusting the rotating angle of the rotating device 3, so that the strain capacity of the fresh air device is greatly improved.
In summary, the fresh air device provided in this embodiment can realize the capability of coping with complex working conditions with a low-cost structure, and has the advantages of high stability, convenient control, high precision and the like.
Example III
This embodiment provides a BBU cabinet, including vent and the new trend device of embodiment one or embodiment two, and the frame 1 of new trend device is installed on the vent. The ventilation opening can be formed at any position on the wall of the BBU cabinet, and the ventilation opening can achieve the effect of ventilation with air outside the cabinet. The first and second embodiments describe specific structures and technical effects related to the fresh air device, and the BBU cabinet of the present embodiment refers to the device and has the technical effects as well.
In summary, the BBU cabinet of the embodiment has the effect of coping with complex working conditions at low cost, and has the advantages of good heat dissipation, high stability, convenient control, high precision and the like.
The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A fresh air device is characterized by comprising a plurality of groups of temperature regulating components and a frame (1) used for being arranged on a ventilation opening;
the frame (1) is rotatably provided with a blade assembly (2), and the blade assembly (2) comprises a plurality of blades which are arranged in parallel and can synchronously rotate; the temperature adjusting component is used for detecting the temperature of the current environment and correspondingly adjusting the opening and closing angles of the blades according to the temperature of the current environment;
the temperature adjusting assembly comprises a rotating device (3), and a driving end of the rotating device (3) is fixedly connected with one end of the blade assembly (2) and is used for driving the blade to rotate to a preset opening and closing angle when the detected temperature reaches a preset temperature threshold value;
a fan assembly (4) is arranged on one side of the frame (1), and the fan assembly (4) comprises a fan circuit (5) and a fan (41) connected into the fan circuit (5); a plurality of voltage reduction modules (53) which are mutually connected in series are arranged in the fan circuit (5); the step-down module (53) is connected with a first circuit breaking part (51) in parallel; the driving end of the rotating device (3) is fixedly connected with a first conducting piece which is used for rotating along with the driving end to conduct the first circuit breaking part (51);
the rotating device (3) is electrically connected with a temperature control switch (31); the temperature control switch (31) is used for starting the rotating device (3) when the detected temperature reaches a preset temperature threshold value;
the first circuit breaking parts (51) are in one-to-one correspondence with the rotating devices (3), and the rotating devices (3) can conduct the corresponding first circuit breaking parts (51) through the corresponding first conducting pieces.
2. Fresh air device according to claim 1, characterized in that the voltage reducing module (53) is further connected in series with a second circuit breaker (52), and the driving end of the rotating device (3) is fixedly connected with a second conducting member for rotating along with the driving end to conduct the second circuit breaker (52).
3. Fresh air device according to claim 2, characterized in that the first and second breaking parts (51, 52) are conductive parts with an opening formed therebetween;
the first conducting piece and the second conducting piece comprise insulating parts fixedly connected to the driving end of the rotating device (3), and one side, away from the driving end, of the insulating parts is provided with a conductor part which can be embedded in the opening.
4. Fresh air device according to claim 2, characterized in that the first breaking part (51) is a first switch and the second breaking part (52) is a second switch connected in series with the voltage step-down module (53);
the first conduction piece and the second conduction piece comprise stirring parts fixedly connected to the driving end of the rotating device (3), the stirring parts of the first conduction piece are used for rotating along with the driving end to drive the first switch to be closed, and the stirring parts of the second conduction piece are used for rotating along with the driving end to drive the second switch to be closed.
5. Fresh air device according to claim 1, characterized in that the depressurization module (53) comprises an adjusting terminal for adjusting the pressure drop, and the driving end of the rotating device (3) is also fixedly connected with an adjusting block for stirring the adjusting terminal.
6. Fresh air device according to claim 1, characterized in that the rotating means (3) is an electric motor or a rotating cylinder.
7. Fresh air device according to claim 1, characterized in that a transmission device is connected between the driving end of the rotating device (3) and the blades of the blade assembly (2), the transmission device comprising a blade connecting piece (61) and a linkage rod (62);
the blade connecting piece (61) is fixedly connected to the blade, the linkage rod (62) is provided with a blade connecting part (621) in a protruding mode corresponding to the blade connecting piece (61), and the blade connecting part (621) is in rotary connection with the corresponding blade connecting piece (61);
the linkage rod (62) is further provided with a rotary connecting part, and the rotary connecting part is connected with the driving end through a connecting rod.
8. BBU cabinet comprising a vent and a fresh air device according to any one of claims 1-7, wherein the frame (1) of the fresh air device is mounted on the vent.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110321446.4A CN113056178B (en) | 2021-03-25 | 2021-03-25 | Fresh air device and BBU cabinet |
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| CN202110321446.4A CN113056178B (en) | 2021-03-25 | 2021-03-25 | Fresh air device and BBU cabinet |
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| CN113056178B true CN113056178B (en) | 2023-11-24 |
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| CN107763810A (en) * | 2017-11-10 | 2018-03-06 | 广东美的制冷设备有限公司 | Control method, control system, computer-readable recording medium and mobile air conditioner |
| CN207471785U (en) * | 2017-11-23 | 2018-06-08 | 深圳市锦创力建设集团有限公司 | The ventilation opening of central air-conditioning |
| CN208606331U (en) * | 2018-02-07 | 2019-03-15 | 河南工业职业技术学院 | A kind of intelligent ventilating system |
| CN208997006U (en) * | 2018-09-07 | 2019-06-18 | 浙江艾罗网络能源技术有限公司 | Fan multistep speed regulation circuit and speed-regulating fan |
| CN111425977A (en) * | 2020-04-28 | 2020-07-17 | 广东海悟科技有限公司 | Multi-connected heat pipe precision air conditioner |
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