CN209800336U - Dynamic fan speed regulating device for forced air cooling communication system - Google Patents
Dynamic fan speed regulating device for forced air cooling communication system Download PDFInfo
- Publication number
- CN209800336U CN209800336U CN201920501667.8U CN201920501667U CN209800336U CN 209800336 U CN209800336 U CN 209800336U CN 201920501667 U CN201920501667 U CN 201920501667U CN 209800336 U CN209800336 U CN 209800336U
- Authority
- CN
- China
- Prior art keywords
- fan
- air cooling
- communication system
- forced air
- 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.)
- Active
Links
Abstract
The utility model relates to an electronic equipment cooling system, in particular to a fan dynamic speed regulating device for a forced air cooling communication system, which comprises a temperature sensor arranged at a fixed temperature monitoring point; comprises a fan for blowing air to the part needing cooling; the PWM module is used for controlling the rotating speed of the fan and has a hysteresis interval; the system comprises a CPU controller for receiving a temperature signal of a temperature sensor and sending a start-stop command to a fan through a PWM (pulse width modulation) module.
Description
Technical Field
the utility model relates to an electronic equipment cooling system, concretely relates to a fan dynamic speed adjusting device that is used for forced air cooling communication system of fan dynamic speed adjusting device that is used for forced air cooling communication system.
Background
on a switchboard or an ONU MDU (passive optical network multi-user unit), the heat consumption of the whole machine is high, and when the natural heat dissipation can not meet the requirement, a fan is required to be adopted to carry out forced air cooling. The temperature of the device depends on the ambient temperature in which the system is located and the efficiency of heat dissipation during the heat dissipation from the chip itself and the air circulation caused by the fan rotation. The operating temperature of the device determines the lifetime of the device. Foreign related researches show that when the temperature of the device exceeds 45 ℃, the service life is reduced by half every time the temperature rises by 10 ℃. For system reliability, a heat dissipation process must be performed. The noise generated by the rotation of the fan and the vibration of the chassis caused by the rotation of the fan are the source of the noise of the equipment. At present, when forced air cooling is adopted on the equipment, the rotating speed of a fan is constant. This, while relatively simple to control, can be problematic when provided for overseas use. The national standard YD 1816, telecommunication equipment noise limit value requirement and measurement method, has no difference between normal temperature and high temperature, and the European standard EN 300753, Acoustic noise estimated elementary biological communications equipment, has the regulations that the noise of the product to be tested is higher at normal temperature and high temperature, and the allowable Acoustic noise at high temperature is higher than that at normal temperature.
When the product is used overseas, the European Union and the like have different noise limit values allowed at normal temperature and high temperature for the requirement on the limit value of audible acoustic noise of ears of people using communication equipment outdoors, so that a temperature control measure is forced to be adopted, the requirement cannot be met by a single rotating speed, when the product rotates at a certain constant low speed, heat dissipation at high temperature is possibly problematic, and when the product rotates at a certain constant high speed, noise at normal temperature is possibly problematic. On the other hand, the heat dissipation of the product is not problematic at low temperature, the fan may not need to be started at all, electric energy is wasted when the fan runs at low temperature, and the total service life of the fan is influenced when the fan continuously rotates for a long time. Moreover, the heat consumption of the existing communication equipment is dynamically changed, the loads are different in the daytime and at night, the POE power supply is started or not, the conditions that a multi-channel switch is not fully loaded and the like are variable, the radio frequency power of a Smallcell small base station is dynamically changed according to the number of users, and the fan speed regulation 3002 needs to be carried out by monitoring the temperature point in real time
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a fan dynamic speed adjusting device for forced air cooling communication system is a fan dynamic speed adjusting device for forced air cooling communication system, solves the problem that fan cooling system can't all compromise heat dissipation and noise requirement up to standard under normal atmospheric temperature and high temperature state.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a dynamic speed regulating device of a fan for a forced air cooling communication system comprises a temperature sensor arranged at a fixed temperature monitoring point;
Comprises a fan for blowing air to the part needing cooling;
The PWM module is used for controlling the rotating speed of the fan and has a hysteresis interval;
The system comprises a CPU controller for receiving a temperature signal of a temperature sensor and sending a start-stop command to a fan through a PWM (pulse width modulation) module.
The technical scheme is that the fan comprises a main fan and an auxiliary fan, wherein the main fan is directly connected with the CPU controller through signals, a power supply circuit of the auxiliary fan is provided with a time delay relay, and an induction coil of the time delay relay is arranged on the power supply circuit of the main fan.
The main fan is fixedly arranged near a part needing air cooling, a guide rail is arranged on the back side of the main fan, and the auxiliary fan is arranged on the guide rail and moves between a non-working position on the side surface of the main fan and a working position superposed with the axis of the main fan through the guide rail.
the technical scheme is that the auxiliary fan moves on the guide rail through a stroke motor, and the stroke motor is electrically connected with a delay relay and is linked with the auxiliary fan in rotation.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses the generally applicable forced air cooling communication system can be according to opening of the temperature automatically regulated fan of difference and stop and rotational speed to reach and compromise heat dissipation and noise, reach energy saving and consumption reduction's purpose.
Drawings
fig. 1 is a working principle diagram of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Fig. 1 shows an embodiment of the present invention, which is a dynamic fan speed adjusting device for forced air cooling communication system, the dynamic fan speed adjusting device for forced air cooling communication system comprises: a dynamic speed regulating device of a fan for a forced air cooling communication system comprises a temperature sensor arranged at a fixed temperature monitoring point;
Comprises a fan for blowing air to the part needing cooling;
The PWM module is used for controlling the rotating speed of the fan and has a hysteresis interval;
the system comprises a CPU controller for receiving a temperature signal of a temperature sensor and sending a start-stop command to a fan through a PWM (pulse width modulation) module.
The working mode is as follows: when the temperature of a certain monitoring point is below 30 ℃, the pulse width duty ratio is set to 0, the fan does not rotate, the PWM pulse width is set to 40% of the slow rotation of the fan when the temperature is 40 ℃, the PWM is set to 70% of the fast rotation when the temperature is 50 ℃, and the PWM is set to 100% of the full rotation when the temperature is 60 ℃, and the settings can be gradually improved according to the requirements of multiple actual temperature tests considering noise control. When the temperature reaches a certain transition point from low to high and passes through the temperature point from high to low, a temperature difference value, namely a hysteresis interval, can be intentionally set, for example, the transition point of the fan from low to high, which never turns to 30% of the rotation speed, is 30 degrees, then the transition point from high to low, which never turns to 30% of the rotation speed, can be set to 25 degrees, leaving a hysteresis interval of 5 degrees.
According to the utility model discloses a preferred embodiment, the fan divide into main fan and auxiliary fan, wherein main wind and the direct signal connection of CPU controller, be equipped with time delay relay on auxiliary fan's the power supply circuit, time delay relay's induction coil sets up on main fan's power supply circuit.
the auxiliary fan is controlled by the time delay relay, the main fan is not turned off after being turned on for a preset time, so that heat dissipation with higher power is required, the rotating speed of the main fan cannot be directly increased to avoid overlarge noise, and therefore the auxiliary fan is started to improve the heat dissipation efficiency.
According to the utility model discloses a preferred embodiment, main fan is near the part that needs the forced air cooling, and main fan's back side direction is installed the guide rail, and vice fan is installed on the guide rail and is moved between the non-operating position that is located main fan side and the operating position that coincides with main fan axle center through the guide rail. To the narrow place of installation control, vice fan is in inoperative position at ordinary times, can not influence the ventilation effect of main fan like this, moves to operating position at the during operation, and increase air volume plays the effect that increases the radiating effect.
according to another preferred embodiment of the present invention, the movement of the sub fan on the guide rail is realized by a stroke motor electrically connected to the delay relay and linked to the rotation of the sub fan.
Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.
Claims (4)
1. A dynamic speed regulating device of a fan for a forced air cooling communication system is characterized in that:
The temperature sensor is arranged at a specified temperature monitoring point;
Comprises a fan for blowing air to the part needing cooling;
the PWM module is used for controlling the rotating speed of the fan and has a hysteresis interval;
The system comprises a CPU controller for receiving a temperature signal of a temperature sensor and sending a start-stop command to a fan through a PWM (pulse width modulation) module.
2. the dynamic fan speed regulation device for forced air cooling communication system according to claim 1, wherein: the fan is divided into a main fan and an auxiliary fan, wherein the main fan is directly in signal connection with the CPU controller, a power supply circuit of the auxiliary fan is provided with a time delay relay, and an induction coil of the time delay relay is arranged on the power supply circuit of the main fan.
3. a fan dynamic speed adjustment device for forced air cooling communication system according to claim 2, characterized in that: the main fan is fixedly arranged near a part needing air cooling, a guide rail is arranged on the back side of the main fan in a lateral direction, and the auxiliary fan is arranged on the guide rail and moves between a non-working position on the side face of the main fan and a working position superposed with the axis of the main fan through the guide rail.
4. A fan dynamic speed adjustment device for forced air cooling communication system according to claim 3, characterized in that: the auxiliary fan moves on the guide rail through a stroke motor, and the stroke motor is electrically connected with the delay relay and linked with the auxiliary fan in rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920501667.8U CN209800336U (en) | 2019-04-15 | 2019-04-15 | Dynamic fan speed regulating device for forced air cooling communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920501667.8U CN209800336U (en) | 2019-04-15 | 2019-04-15 | Dynamic fan speed regulating device for forced air cooling communication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209800336U true CN209800336U (en) | 2019-12-17 |
Family
ID=68829265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920501667.8U Active CN209800336U (en) | 2019-04-15 | 2019-04-15 | Dynamic fan speed regulating device for forced air cooling communication system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209800336U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115866128A (en) * | 2021-09-24 | 2023-03-28 | 北京小米移动软件有限公司 | Electronic device control method, electronic device control device, electronic device control medium, and electronic device |
-
2019
- 2019-04-15 CN CN201920501667.8U patent/CN209800336U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115866128A (en) * | 2021-09-24 | 2023-03-28 | 北京小米移动软件有限公司 | Electronic device control method, electronic device control device, electronic device control medium, and electronic device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106130193A (en) | Radio energy transmission system and wireless power transmission control method | |
| CN209800336U (en) | Dynamic fan speed regulating device for forced air cooling communication system | |
| WO2003088471A3 (en) | Arrangement for operating a multi-phased and reversible rotating electrical machine associated with a heat engine of a motor vehicle | |
| CN102261343A (en) | Device and method for speed regulation of fan | |
| CN102136846B (en) | Power management device and method | |
| CN102628877B (en) | Heat dissipation system of integrated circuit tester and control method thereof | |
| CN105048909A (en) | Eddy current retarder system with stepless adjustable field current and control method thereof | |
| CN205190293U (en) | Projecting apparatus radiator fan control system | |
| CN114412818A (en) | Wide-range adjusting device of ultra-high-speed cooling fan | |
| CN109217491B (en) | Power taking device for power transmission tower | |
| CN207526529U (en) | A kind of efficient expansion electricity generation system | |
| CN110690818A (en) | Integrated analog controlled DC/DC converter for hydrogen fuel cell system | |
| CN112484244A (en) | Control method and device for fan of air conditioner indoor unit | |
| CN201178392Y (en) | Control circuit of DC frequency converting motor | |
| CN116096047B (en) | Intelligent heat dissipation method, device and system | |
| CN208924149U (en) | A kind of novel intelligent motor control device | |
| CN209025877U (en) | A kind of mobile unit fan rotation speed control apparatus | |
| CN116184916B (en) | Intelligent centralized controller and control method thereof | |
| CN110572988A (en) | Current-limiting control device and method of direct-current speed reduction motor | |
| CN213545527U (en) | Wireless low-power consumption intelligence remote control device based on LORA | |
| CN218216770U (en) | Special permanent magnet generator set for charging | |
| CN209282890U (en) | A kind of two-wire system wireless charging communication interface framework | |
| CN207926474U (en) | A kind of positive and negative rotation contactless electric machine controller | |
| CN217105301U (en) | Independent cooling system and excavator | |
| WO2013020223A1 (en) | System and method for reducing power consumption in telecommunication systems |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |