CN108649536A - The power control of building room entry/exit management - Google Patents
The power control of building room entry/exit management Download PDFInfo
- Publication number
- CN108649536A CN108649536A CN201810597047.9A CN201810597047A CN108649536A CN 108649536 A CN108649536 A CN 108649536A CN 201810597047 A CN201810597047 A CN 201810597047A CN 108649536 A CN108649536 A CN 108649536A
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- Prior art keywords
- touch
- pressure switch
- motor driver
- piston
- cam
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 239000002775 capsule Substances 0.000 claims abstract description 34
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 9
- 206010037660 Pyrexia Diseases 0.000 abstract description 7
- 230000017525 heat dissipation Effects 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000246 remedial effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
- H02H7/0852—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load directly responsive to abnormal temperature by using a temperature sensor
Landscapes
- Emergency Alarm Devices (AREA)
Abstract
The invention discloses a kind of power controls of building room entry/exit management, it is related to electrical safety control field, the circuit to be formed is connect with motor driver including power supply, the first touch-pressure switch and the second touch-pressure switch are in series on the circuit, first touch-pressure switch is close to motor driver, first touch-pressure switch is parallel with fan, and fan is in series with third touch-pressure switch；Further include cam and cylinder body, is equipped with piston in cylinder, cylinder body is divided into left chamber and right chamber by piston, and left chamber is communicated with bar shaped capsule, and the protrusion of bar shaped capsule one end and cam far from left chamber is affixed, and right chamber is communicated with air bag；Piston is connected with piston rod close to the side of left chamber, and one end of piston rod is stretched out outside cylinder body, and one end that piston rod stretches out outside cylinder body is connected with pressure ram.The present invention solves the problems, such as that existing motor driver radiator heat dissipation is halfway, mainly reduces the fever of motor driver by changing mode of loading, and the protection circuit that can in case of emergency cut off the power in time.
Description
Technical field
The present invention relates to electrical safety control field, more particularly to a kind of power control of building room entry/exit management.
Background technology
With the development of Chinese Urbanization, the public building in city is more and more, often had in building strange visitor into
Go out, and building are populous, it is difficult to which it is visitor to identify whether, therefore there are various security risks in building, in order to reality
When understand visitor personnel dynamic, ensure building property safety, need to building disengaging personnel be managed.And with intelligent building
The fast development of space gate inhibition's Prevention-Security technology, access control system are gradually applied in building management.
Existing access control system includes card reader and motor driver etc., by reader identification pass in and out the identity of personnel come
Enabling signal is sent to motor driver, to open gate.Motor driver therein will produce a large amount of heat in the running
Amount, fever phenomenon often influences its performance of product, when radiating bad, often has unstable product quality phenomenon, or even influence
The service life of product.Therefore motor driver is both provided with radiator, produced when for dispersing motor driver work
Heat, damage of the heat prevented to motor driver.
Radiator is all only individually set to motor driver by the motor driver radiator of currently available technology
Shell is transmitted just with the thermal conductivity of radiator itself in heat to air, and heat dissipation effect is not fine, is especially existed
Hot summer, the temperature in motor driver ambient enviroment may be up to 60 degrees Celsius or more, and motor operates at high temperature, it is long this
In the past, certain damage can be caused to motor, shorten the service life of motor；And when motor occurs seriously generating heat because blocking
When, it can not being radiated well to motor driver using traditional radiator, motor can not also quickly shut off power supply,
Motor is caused to be easy to be burned.
Invention content
The invention is intended to provide a kind of power control of building room entry/exit management, reduce motor by changing mode of loading
The fever of driver, and the protection circuit that can in case of emergency cut off the power in time.
In order to solve the above technical problems, base case provided by the invention is as follows：
The power control of building room entry/exit management, including power supply connect the circuit to be formed with motor driver, the circuit
On be in series with the first touch-pressure switch and the second touch-pressure switch, first touch-pressure switch presses out close to motor driver, first
Pass is parallel with fan, and fan is in series with third touch-pressure switch；
Further include pedestal, and the cam that can be contacted with the first touch-pressure switch and third touch-pressure switch, at the center of cam
It is rotatably connected to support shaft, support shaft is fixed in by support plate on pedestal；The fan is fixed in by supporting rack on pedestal；Bottom
It is placed with cylinder body on seat, piston is slidingly sealed in cylinder, cylinder body is divided into left chamber and right chamber by piston, and left chamber is communicated with item
The protrusion of shape capsule, bar shaped capsule one end and cam far from left chamber is affixed, and the bar shaped capsule can push cam during expansion
It is rotated towards third touch-pressure switch, right chamber is communicated with the air bag of accessible motor driver；Piston is solid close to the side of left chamber
It is connected to piston rod, one end of piston rod is stretched out outside cylinder body, and one end that piston rod stretches out outside cylinder body is connected with and can be pressed open with second
The pressure ram for closing contact, when the piston move to left chamber, pressure ram the second touch-pressure switch of contact and by the second touch-pressure switch
It disconnects.
The operation principle of base case：Due to being placed with cylinder body on pedestal, piston is slidingly sealed in cylinder, cylinder body is by piston
It is divided into left chamber and right chamber, left chamber is communicated with bar shaped capsule, the protrusion of bar shaped capsule one end and cam far from left chamber
It is affixed, so the temperature that bar shaped capsule can be dispersed into working environment by motor driver is expanded with heat and contract with cold to realize.In motor
In driver normal operation, cam has not occurred rotation, and the protrusion of cam is contacted and squeezed with the first touch-pressure switch
First touching switch, therefore the first touch-pressure switch is in closed state, cam is not contacted with third touch-pressure switch at this time, and third is touched
It compresses switch and is off, and the second touch-pressure switch is constantly in closed state, motor driver work under full-load conditions
Make.
If in environment when the temperature is excessively high, bar shaped capsule expanded by heating, the bar shaped capsule of expansion pushes cam to be pressed out towards third
Close rotation, it is gradually close to third touch-pressure switch that the protrusion of cam leaves the first touch-pressure switch, at this time the first touch-pressure switch
It disconnects, the protrusion for the cam that goes directly is completely attached to third touch-pressure switch, and third touch-pressure switch is now in the state of closure；
Since the first touch-pressure switch is parallel with fan, fan is in series with third touch-pressure switch, so at this time at fan and motor driver
In series connection, fan radiates to motor driver after being powered, at the same time, because of fan and motor driver series connection,
Fan has shared the original voltage of motor driver, that is, reduces the power of motor driver, decreases motor driving
The fever of device under the high temperature conditions.
When motor driver breaks down because blocking, since right chamber is communicated with the air bag of accessible motor, piston
It is connected with piston rod close to the side of left chamber, one end of piston rod is stretched out outside cylinder body, and it is solid that piston rod stretches out one end outside cylinder body
Be connected to the pressure ram that can be contacted with the second touch-pressure switch, thus the air bag contacted with electrical equipment drive device can be heated occur rapidly it is swollen
Swollen, the indoor air pressure of right chamber increases rapidly, to push piston and piston rod to be moved close to the direction of left chamber rapidly, at this point,
Pressure ram can come into contact with the second touch-pressure switch and be disconnected until by the second touch-pressure switch, and motor driving is promptly cut off to realize
The entire circuit that device is connected with power supply, prevents motor driver to be burned because blocking.
Base case has the beneficial effect that：
1, compared with existing motor driver radiator, the present invention realizes bar shaped capsule by motor driver fever
Expand with heat and contract with cold, push cam to rotate using the bar shaped capsule of expansion, allow in cam rotation process and squeeze the first touch-pressure switch respectively
The series connection that motor driver and fan are realized with third touch-pressure switch, with the full load of switch motor driver and half load mould
Formula starts heat dissipation of the fan realization to motor driver, and the work(by reducing motor driver by way of half load
Consumption is generated heat to reduce.
2, motor driver is breaking down etc. in emergency circumstances, and by motor driver, raised temperature is broken rapidly
The air pressure balance state of bar shaped capsule and air bag both sides pushes the piston driving in cylinder body to squeeze using the air-flow of flowing as driving force
Bar squeezes the second touch-pressure switch, and the second touch-pressure switch is disconnected rapidly, in time connect motor driver with power supply
Entire circuit cut-out, avoids motor driver from being burned out, and then avoid the generation of safety accident.
Further, temperature sensor is equipped at the motor driver, temperature sensor signal is connected with controller, controls
Device signal is connected with wireless communication module, and wireless communication module is wirelessly connected with user terminal；The temperature sensor is for feeling
It answers temperature and temperature information is passed into controller, temperature threshold is preset in controller, when the temperature letter that controller receives
When breath is more than temperature threshold, controller triggers wireless communication module and sends the letter that motor driver breaks down to user terminal
Breath.
Temperature threshold can be set as minimum temperature when motor driver breaks down in advance, when temperature sensor senses arrive
Motor driver adstante febre due to failure, the user terminal that can hold at the first time to relevant staff send motor driving
The information that device breaks down is arranged to which staff can obtain the information at the first time and take correspondingly to remedy in time
It applies, the failure of motor driver is avoided to cause the safety accident of bigger.
Further, the controller signals are connected with alarm, when the temperature information that controller receives is more than temperature threshold
When value, controller can also control alarm and alarm occurs.
When motor driver breaks down, alarm can cause staff and pass in and out the attention of personnel.
Further, controller also signal is connected with display, and the temperature information that controller is additionally operable to receive is sent to
Display is shown.
Display is capable of the temperature of real-time display motor driver, to staff can real time inspection to motor driving
Working condition inside device.
Further, bearing is equipped between support shaft and cam.
The setting of bearing can reduce the friction between support shaft and cam, increase the service life of cam.
Further, the bar shaped capsule is Nian Jie with cam.
In such a way that bar shaped capsule is Nian Jie with cam, will not only damage bar shaped capsule, but can in bar shaped capsule expanded by heating,
It is supplied to the thrust of cam maximum.
Description of the drawings
Fig. 1 is the circuit diagram of the power control embodiment of building room entry/exit management of the present invention；
Fig. 2 is the structural schematic diagram of the power control embodiment of building room entry/exit management of the present invention.
Specific implementation mode
It is further described below by specific implementation mode：
Reference numeral in Figure of description includes：First touch-pressure switch 1, the second touch-pressure switch 2, third touch-pressure switch 3,
Motor driver 4, fan 5, pedestal 6, cam 7, support shaft 8, support plate 9, cylinder body 10, left chamber 11, right chamber 12, bar shaped capsule
13, air bag 14, piston rod 15, pressure ram 16, supporting rack 17.
As shown in Figure 1, the power control of building room entry/exit management of the present invention, including power supply are connect with motor driver 4
The circuit of formation, the first touch-pressure switch 1 and the second touch-pressure switch 2 are in series on the circuit, and the first touch-pressure switch 1 drives close to motor
Dynamic device 4, the first touch-pressure switch 1 is parallel with fan 5, and fan 5 is in series with third touch-pressure switch 3；
As shown in Fig. 2, further include pedestal 6, and the cam that can be contacted with the first touch-pressure switch 1 and third touch-pressure switch 3
7, support shaft 8 is rotatably connected at the center of cam 7, and support shaft 8 is welded on by support plate 9 on pedestal 6, support shaft 8 and cam 7
Between be equipped with bearing, to reduce the friction between support shaft 8 and cam 7；Fan 5 is welded on by supporting rack 17 on pedestal 6；Bottom
It is placed with cylinder body 10 on seat 6, piston is slidingly sealed in cylinder, cylinder body 10 is divided into left chamber 11 and right chamber 12, left chamber by piston
Room 11 is communicated with bar shaped capsule 13, and the one end of bar shaped capsule 13 far from left chamber 11 is Nian Jie with the protrusion of cam 7, and bar shaped capsule 13 exists
Cam 7 can be pushed to be rotated towards third touch-pressure switch 3 when expansion, right chamber 12 is communicated with the air bag 14 of accessible motor driver 4；
Piston is connected with piston rod 15 close to the side of left chamber 11, and one end of piston rod 15 is stretched out outside cylinder body 10, and piston rod 15 stretches out
One end outside cylinder body 10 is connected with the pressure ram 16 that can be contacted with the second touch-pressure switch 2, when piston is moved to left chamber 11, squeezes
Bar 16 contacts the second touch-pressure switch 2 and disconnects the second touch-pressure switch 2.
Temperature sensor is equipped at motor driver 4 in the present embodiment, temperature sensor signal is connected with controller, controls
Device signal processed is connected with wireless communication module, display and alarm, and wireless communication module is wirelessly connected with user terminal；Temperature
Temperature information for temperature sensor and is passed to controller by sensor, temperature threshold is preset in controller, controller is used for
The temperature information received is sent to display to show；When the temperature information that controller receives is more than temperature threshold, control
Device processed triggers wireless communication module and sends the information that motor driver 4 breaks down to user terminal, while controller can also be controlled
Alarm occurs for alarm processed.
The operation principle of the power control of the building room entry/exit management is：
Because being placed with cylinder body 10 on pedestal 6, piston is slidingly sealed in cylinder, cylinder body 10 is divided into 11 He of left chamber by piston
Right chamber 12, left chamber 11 are communicated with bar shaped capsule 13, and the one end of bar shaped capsule 13 far from left chamber 11 and the protrusion of cam 7 are solid
It connects, is expanded with heat and contract with cold so bar shaped capsule 13 can be dispersed into the temperature in working environment by motor driver 4 to realize.In motor
In 4 normal operation of driver, cam 7 has not occurred rotation, and the protrusion of cam 7 contacts simultaneously with the first touch-pressure switch 1
The first touching switch is squeezed, therefore the first touch-pressure switch 1 is in closed state, cam 7 does not connect with third touch-pressure switch 3 at this time
It touches, third touch-pressure switch 3 is off, and the second touch-pressure switch 2 is constantly in closed state, and motor driver 4 is full
It works under loading condition.
If in environment when the temperature is excessively high, 13 expanded by heating of bar shaped capsule, the bar shaped capsule 13 of expansion pushes cam 7 to be touched towards third
Compress switch 3 rotations, and it is gradually close to third touch-pressure switch 3 that the protrusion of cam 7 leaves the first touch-pressure switch 1, and at this time first
Touch-pressure switch 1 disconnects, and the protrusion of the cam 7 of going directly is completely attached to third touch-pressure switch 3, and third touch-pressure switch 3 is located at this time
In the state of closure；Since the first touch-pressure switch 1 is parallel with fan 5, fan 5 is in series with third touch-pressure switch 3, so wind at this time
Fan 5 and motor driver 4 are in series connection, and fan 5 radiates to motor driver 4 after being powered, at the same time, because of wind
Fan 5 and motor driver 4 are connected, and fan 5 has shared the original voltage of motor driver 4, that is, reduces power driver
Power decreases the fever of motor driver 4 under the high temperature conditions.
When motor driver 4 breaks down because blocking, since right chamber 12 is communicated with the air bag 14 of accessible motor,
Piston is connected with piston rod 15 close to the side of left chamber 11, and one end of piston rod 15 is stretched out outside cylinder body 10, and piston rod 15 stretches out
One end outside cylinder body 10 is connected with the pressure ram 16 that can be contacted with the second touch-pressure switch 2, so the gas contacted with electrical equipment drive device
Capsule 14 can be heated and expand rapidly, and the air pressure in right chamber 12 increases rapidly, to push piston and piston rod 15 to lean on rapidly
The direction movement of nearly left chamber 11, at this point, pressure ram 16 can come into contact with the second touch-pressure switch 2 until by the second touch-pressure switch 2
It disconnects, promptly cuts off the entire circuit that motor driver 4 is connected with power supply to realize, prevent motor driver 4 because blocking
And it is burned.
Temperature threshold can be set as minimum temperature when motor driver 4 breaks down in advance, work as temperature sensor senses
To motor driver 4, adstante febre, the user terminal that can hold at the first time to relevant staff send motor due to failure
The information that driver 4 breaks down is simultaneously emitted by alarm and causes staff and pass in and out personnel's note that staff can also
Working condition inside real time inspection to motor driver 4, to which staff can obtain the information and timely at the first time
Correspondingly remedial measure is taken on ground, and the failure of motor driver 4 is avoided to cause the safety accident of bigger.
The present invention generates heat to realize expanding with heat and contract with cold for bar shaped capsule 13 by motor driver 4, utilizes the bar shaped capsule 13 of expansion
It pushes cam 7 to rotate, allows in 7 rotation process of cam and squeeze the first touch-pressure switch 1 and third touch-pressure switch 3 respectively to realize motor
The series connection of driver 4 and fan 5 is opened with the full load of switch motor driver 4 and half load pattern by way of half load
Dynamic fan 5 realizes the heat dissipation to motor driver 4, and reduces fever by reducing the power consumption of motor driver 4；
In addition to this, the motor driver 4 in the present invention is breaking down etc. in emergency circumstances, passes through motor driver 4
Rapid raised temperature breaks the air pressure balance state on 14 both sides of bar shaped capsule and air bag, is pushed using the air-flow of flowing as driving
Piston driving pressure ram 16 in dynamic cylinder body 10 squeezes the second touch-pressure switch 2, and the second touch-pressure switch 2 is disconnected rapidly, thus and
When motor driver 4 is connected with power supply entire circuit cut-out, avoid motor driver 4 from being burned out, and then avoid peace
The generation of full accident.
Above-described is only the embodiment of the present invention, and the common sense such as well known concrete structure and characteristic are not made herein in scheme
Excessive description.It, without departing from the structure of the invention, can be with it should be pointed out that for those skilled in the art
Several modifications and improvements are made, these should also be considered as protection scope of the present invention, these all do not interfere with what the present invention was implemented
Effect and patent practicability.The scope of protection required by this application should be based on the content of the claims, in specification
The records such as specific implementation mode can be used for explaining the content of claim.
Claims (6)
1. the power control of building room entry/exit management, it is characterised in that：
It connect the circuit to be formed with motor driver including power supply, the first touch-pressure switch and second is in series on the circuit and is pressed out
It closes, first touch-pressure switch is parallel with fan close to motor driver, the first touch-pressure switch, and fan is in series with third and presses out
It closes；
Further include pedestal, and the cam that can be contacted with the first touch-pressure switch and third touch-pressure switch, is rotated at the center of cam
It is connected with support shaft, support shaft is fixed in by support plate on pedestal；The fan is fixed in by supporting rack on pedestal；On pedestal
It is placed with cylinder body, piston is slidingly sealed in cylinder, cylinder body is divided into left chamber and right chamber by piston, and left chamber is communicated with bar shaped
The protrusion of capsule, bar shaped capsule one end and cam far from left chamber is affixed, and the bar shaped capsule can push cam court during expansion
Third touch-pressure switch rotates, and right chamber is communicated with the air bag of accessible motor driver；Piston is affixed close to the side of left chamber
There are piston rod, one end of piston rod to stretch out outside cylinder body, one end that piston rod stretches out outside cylinder body is connected with can be with the second touch-pressure switch
The pressure ram of contact, when the piston is moved to left chamber, pressure ram contacts the second touch-pressure switch and the second touch-pressure switch breaks
It opens.
2. the power control of building room entry/exit management according to claim 1, it is characterised in that：The motor driver
Place is equipped with temperature sensor, and temperature sensor signal is connected with controller, and controller signals are connected with wireless communication module, wirelessly
Communication module is wirelessly connected with user terminal；Temperature information for temperature sensor and is passed to control by the temperature sensor
Device is preset with temperature threshold in controller, and when the temperature information that controller receives is more than temperature threshold, controller triggers nothing
Line communication module sends the information that motor driver breaks down to user terminal.
3. the power control of building room entry/exit management according to claim 2, it is characterised in that：The controller signals
It is connected with alarm, when the temperature information that controller receives is more than temperature threshold, controller can also control alarm
Alarm.
4. the power control of building room entry/exit management according to claim 3, it is characterised in that：Controller also signal connects
It is connected to display, the temperature information that controller is additionally operable to receive is sent to display and shows.
5. the power control of building room entry/exit management according to claim 1, it is characterised in that：Support shaft and cam it
Between be equipped with bearing.
6. the power control of building room entry/exit management according to claim 1, it is characterised in that：The bar shaped capsule with it is convex
Wheel bonding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810597047.9A CN108649536A (en) | 2018-06-11 | 2018-06-11 | The power control of building room entry/exit management |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810597047.9A CN108649536A (en) | 2018-06-11 | 2018-06-11 | The power control of building room entry/exit management |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108649536A true CN108649536A (en) | 2018-10-12 |
Family
ID=63752351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810597047.9A Pending CN108649536A (en) | 2018-06-11 | 2018-06-11 | The power control of building room entry/exit management |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108649536A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114916165A (en) * | 2022-03-03 | 2022-08-16 | 合肥九思机械设计有限公司 | 5G communication explosion-proof equipment of intelligent cooling pressure release |
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|---|---|---|---|---|
| KR810001629Y1 (en) * | 1981-08-26 | 1981-10-27 | 랜코 인코오퍼레이티드 | Condition (temperature and pressure) responsive control switch units |
| CN107979935A (en) * | 2017-12-21 | 2018-05-01 | 重庆硕德信息技术有限公司 | Equipment enclosure applied to campus |
| CN207440720U (en) * | 2017-11-08 | 2018-06-01 | 扬州工业职业技术学院 | Computer hardware temperature control equipment |
| CN208226557U (en) * | 2018-06-11 | 2018-12-11 | 重庆慧居智能电子有限公司 | The power control of building room entry/exit management |
-
2018
- 2018-06-11 CN CN201810597047.9A patent/CN108649536A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR810001629Y1 (en) * | 1981-08-26 | 1981-10-27 | 랜코 인코오퍼레이티드 | Condition (temperature and pressure) responsive control switch units |
| CN207440720U (en) * | 2017-11-08 | 2018-06-01 | 扬州工业职业技术学院 | Computer hardware temperature control equipment |
| CN107979935A (en) * | 2017-12-21 | 2018-05-01 | 重庆硕德信息技术有限公司 | Equipment enclosure applied to campus |
| CN208226557U (en) * | 2018-06-11 | 2018-12-11 | 重庆慧居智能电子有限公司 | The power control of building room entry/exit management |
Non-Patent Citations (1)
| Title |
|---|
| 孟非;樊迪;陈旭;陈晓鹏;: "面向工业控制系统的智能安全电机驱动器", 科学技术与工程, no. 19, pages 217 - 224 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114916165A (en) * | 2022-03-03 | 2022-08-16 | 合肥九思机械设计有限公司 | 5G communication explosion-proof equipment of intelligent cooling pressure release |
| CN114916165B (en) * | 2022-03-03 | 2024-01-23 | 深圳市臻善通信技术有限公司 | Intelligent cooling and pressure relief 5G communication explosion-proof equipment |
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Application publication date: 20181012 |
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