CN208258308U - The power supply unit of entrance guard management - Google Patents
The power supply unit of entrance guard management Download PDFInfo
- Publication number
- CN208258308U CN208258308U CN201820939721.2U CN201820939721U CN208258308U CN 208258308 U CN208258308 U CN 208258308U CN 201820939721 U CN201820939721 U CN 201820939721U CN 208258308 U CN208258308 U CN 208258308U
- Authority
- CN
- China
- Prior art keywords
- power supply
- driving gear
- disconnecting unit
- unit
- electrical equipment
- 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
Landscapes
- Thermally Actuated Switches (AREA)
Abstract
The utility model discloses a kind of power supply units of entrance guard management, it is related to electric power safety control field, the major loop to be formed is connect with electrical equipment including power supply, major loop is equipped with the first disconnecting unit, first disconnecting unit is connected in parallel to the current supply circuit of fan motor, the current supply circuit of fan motor is equipped with the second disconnecting unit, and fan is located at the side of power supply unit；It further include intermeshing driving gear and driven gear；It is additionally provided with cylinder body on support base, piston is slidingly sealed in cylinder, offers the opening that can be blocked by piston at the top of cylinder body, cylinder body opening is communicated with retractable sack；Cylinder body is communicated with air bag close to the side of power supply unit；The end face of driving gear and driven gear includes fan-shaped conductive part and insulation division.The utility model solves the problems, such as that the radiator heat dissipation effect of existing power supply unit is poor, mainly reduces calorific value by changing the power consumption of power supply unit, and can cut off the power in time in abnormal cases to protect circuit safety.
Description
Technical field
The utility model relates to electric power safety control field, in particular to a kind of power supply unit of entrance guard management.
Background technique
With progress of the epoch, security protection safety problem is increasingly paid attention to, so more and more bank, hotel, vehicles
All selection installation access control systems such as field management, computer room, armory, cubicle, intellectual communityintellectualized village, factory.Entrance guard management system
System integrates microcomputer automatic identification technology and modern safety management measure, it is related to electronics, mechanical, optics, computer technology,
Mechanics of communication, many new technologies such as biotechnology.It is to solve important department entrance to realize effectively arranging for safety precaution management
It applies, plays biggish effect in the Administrations such as work circumstances safe, personnel attendance management.
When power supply unit and electrical equipment in access control system work, such as it can be generated when power supply power supply a large amount of
Heat generally can install radiator to power supply unit and electrical equipment at present, with the heat that prevents to power supply unit and
Electrical equipment damages, but existing radiator is all only arranged on power supply unit and the shell of electrical equipment, only
Heat is transmitted into air merely with the thermal conductivity of radiator itself, there is a problem of heat dissipation effect difference.
Utility model content
The utility model is intended to provide a kind of power supply unit of entrance guard management, is reduced by changing the power consumption of electrical equipment
Calorific value, and can cut off the power in time in abnormal cases to protect circuit safety.
In order to solve the above technical problems, base case provided by the utility model is as follows:
The power supply unit of entrance guard management connect the major loop to be formed with electrical equipment including power supply, and major loop is equipped with the
One disconnecting unit, the first disconnecting unit are connected in parallel to the current supply circuit of fan motor, and the current supply circuit of fan motor is equipped with second
Disconnecting unit, the fan are located at the side of power supply unit；
It further include two contact of driving gear and the second disconnecting unit being arranged between two contact of support base and the first disconnecting unit
Between the driven gear that is arranged, the driving gear engages with driven gear；
It is additionally provided with cylinder body on support base, is slidingly sealed with piston in cylinder, opening of being blocked by piston is offered at the top of cylinder body
Mouthful, cylinder body opening is communicated with retractable sack；The retractable sack and opening junction are fixing end, and the other end of retractable sack is flexible
End, the telescopic end and driving gear of the retractable sack are affixed, and retractable sack is tangent with the root circle of driving gear along its length；
Cylinder body is communicated with air bag close to the side of power supply unit, and the air bag is contacted with power supply unit；
The end face of the driving gear and driven gear includes the conductive part and insulation division of sector, the driving gear
Conductive part and insulation division can be contacted with two contacts of the first disconnecting unit, and the conductive part and insulation division of driven gear can be disconnected with second
Two contacts in portion contact；When the telescopic end expanded by heating of the retractable sack, driving gear can be pushed to drive driven gear rotation, with
The normal mode of operation or the first disconnecting unit for forming the electrical equipment of the connection of the first disconnecting unit and the disconnection of the second disconnecting unit disconnect
The electricity consumption that the radiating mode for the electrical equipment being connected to the second disconnecting unit or the first disconnecting unit and the second disconnecting unit disconnect is set
Standby safe mode.
The working principle of base case: during electrical equipment works, power supply unit and electrical equipment oneself can be produced
Heat amount, while the temperature of environment can also have an impact power supply unit and electrical equipment.Due to being additionally provided with cylinder body on support base,
It is slidingly sealed with piston in cylinder, offers the opening that can be blocked by piston at the top of cylinder body, cylinder body opening is communicated with retractable sack；Cylinder
Body is communicated with air bag close to the side of power supply unit, and air bag is contacted with power supply unit；So retractable sack induction is electrical equipment
The temperature of ambient enviroment, what air bag incuded is the heat that electrical equipment itself generates.
When electrical equipment works normally and environment temperature is not high, the air pressure at cylinder body both ends is in a kind of shape of relative equilibrium
State, piston will not move too obvious, because driving gear, between the first disconnecting unit, driven gear is located at the second disconnecting unit
Between, the end face of driving gear and driven gear includes fan-shaped conductive part and insulation division, so driving gear is led at this time
Electric portion is placed exactly between the first disconnecting unit, and the insulation division of driven gear is between the second disconnecting unit, that is, first disconnects
Portion is in connected state, and the second disconnecting unit is in an off state, and electrical equipment is in normal mode of operation.
When electrical equipment works normally and environment temperature is very high, the air pressure at cylinder body both ends is in a kind of shape of relative equilibrium
State, piston will not move, and after the heat in environment is absorbed by retractable sack, the telescopic end of retractable sack starts to expand, due to stretching
The telescopic end of contracting capsule and the root circle of driving gear are tangent, so the telescopic end of retractable sack will push driving gear and start to rotate,
Principal and subordinate's gear drives driven gear to rotate again, and in the process, the insulation division of driving gear moves closer to the position of the first disconnecting unit
It sets, the conductive part of driven gear moves closer to the position of the second disconnecting unit, and until the first disconnecting unit is in an off state, second is disconnected
It opens portion and is in connected state, electrical equipment is in radiating mode at this time, and fan and electrical equipment are connected in series at this time, and fan is powered
It radiates afterwards to power supply unit, at the same time, because of fan and electrical equipment series connection, it is original that fan has shared electrical equipment
Voltage, that is, the power of electrical equipment is reduced, the fever of electrical equipment under the high temperature conditions is decreased, thus in environment
Temperature reduce, decrease the influence to power supply unit.
In electrical equipment irregular working, such as electrical equipment is stuck, at this time electrical equipment can abnormal fever,
After the air bag contacted with electrical equipment absorbs the high temperature of electrical equipment, expands rapidly and push piston to the sidesway far from air bag
Dynamic, the opening blocked at this time by piston is opened, and the air-flow in air bag is flowed into retractable sack rapidly by opening, and retractable sack is in gas
Under the percussion of stream, driving gear rotation is promptly pushed, the angle work more normal than electrical equipment of driving gear rotation at this time
As when the angle that rotates it is bigger, the angle that driven gear rotates under driving gear drive is also bigger, thus driving gear and from
The insulation division of moving gear is respectively positioned between the first disconnecting unit and the second disconnecting unit, that is, the first disconnecting unit and the second disconnecting unit it is equal
State in disconnection, electrical equipment are in safe mode, to realize that promptly cutting off electrical equipment and fan and power supply connects
The entire circuit connect, prevents electrical equipment to be burned because blocking.
Base case has the beneficial effect that
1, compared with the radiator of existing electrical equipment, the utility model is realized flexible by electrical equipment fever
Capsule and air bag expand with heat and contract with cold, and push driving gear and driven gear to rotate using the retractable sack of expansion, make the first disconnecting unit disconnected
It opens and disconnects the series connection not being connected to realize electrical equipment and fan with second, to switch the full load and half load mould of electrical equipment
Formula, started by way of half load fan realize heat dissipation to electrical equipment, and the power consumption by reducing electrical equipment come
Reduce fever.
2, electrical equipment is breaking down etc. in emergency circumstances, and by electrical equipment, raised temperature is flexible to break rapidly
The air pressure balance state of capsule and air bag both sides pushes the intracorporal piston of cylinder rapid by retractable sack using the air-flow of flowing as driving force
Expansion allows driving gear and driven gear to rotate greater angle to simultaneously switch off the first disconnecting unit and the second disconnecting unit, thus and
When the entire circuit that connects to power supply electrical equipment and fan cut off, avoid electrical equipment from being burned out, and then avoid peace
The generation of full accident.
Further, the cavity being connected to retractable sack is offered in the piston, cavity and retractable sack connectivity part are equipped with electromagnetism
Valve, the retractable sack outside are equipped with temperature sensor, and temperature sensor signal is connected with controller, and controller is preset with temperature threshold
Value, when the temperature that temperature sensor is sent to controller is more than temperature threshold, controller controls solenoid valve and opens.
Using above-mentioned design, when the temperature in environment is excessively high, and electrical equipment works normally, temperature sensor senses are arrived
The temperature of environment simultaneously passes to controller, when the temperature that controller judgement receives is greater than temperature threshold, then controls solenoid valve and beats
It opens, the portion gas in retractable sack is entered in the cavity in piston by solenoid valve, avoids stretching because of the excessively high retractable sack of environment temperature
Contracting acutely keeps driving gear and driven gear rotational angle excessive, and the first disconnecting unit and the second disconnecting unit is caused to disconnect.
Further, the support base is equipped with touching switch, and the touching switch is located at the lower section of air bag, and the touching is opened
Powered-down to be connected with buzzer, the touching switch is for starting and closing buzzer.
When electrical equipment failure abnormal heating, air bag expands rapidly and is moved downward to and contacts with touching switch,
To start buzzer, buzzer, which sounds an alarm, reminds relevant staff, so that staff can obtain at the first time
The information that electrical equipment breaks down, adopts remedial measures in time.
Further, the driving gear is perpendicular to the first disconnecting unit, and the driven gear is perpendicular to the second disconnecting unit.
Using the above structure, can allow conductive part on driving gear and driven gear respectively preferably with the first disconnecting unit
It contacts and is powered with the second disconnecting unit.
Further, the telescopic end of the retractable sack is bonded on driving gear.
The telescopic end of retractable sack is Nian Jie with driving gear, thus in retractable sack expanded by heating, telescopic end be capable of providing to
The maximum motive force of driving gear.
Further, rolling bearing is equipped between support shaft and driving gear and driven gear.
The setting of bearing can reduce the frictional force of driving gear and driven gear between support shaft.
Detailed description of the invention
Fig. 1 is the circuit diagram of the power supply unit embodiment of the utility model entrance guard management；
Fig. 2 is the structural schematic diagram of the power supply unit embodiment of the utility model entrance guard management shown in Fig. 1.
Specific embodiment
It is further described below by specific embodiment:
Appended drawing reference in Figure of description includes: the first disconnecting unit 1, the second disconnecting unit 2, electrical equipment 3, fan 4, branch
Support seat 5, driving gear 6, driven gear 7, support shaft 8, bracket 9, cylinder body 10, piston 11, opening 12, retractable sack 13, air bag 14,
Conductive part 15, insulation division 16, cavity 17, solenoid valve 18, touching switch 19.
As depicted in figs. 1 and 2, the power supply unit of the utility model entrance guard management, including power supply connect shape with electrical equipment 3
At major loop, major loop is equipped with the first disconnecting unit 1, and the first disconnecting unit 1 is connected in parallel to the current supply circuit of 4 motor of fan,
The branch road of the current supply circuit of 4 motor of fan is equipped with the second disconnecting unit 2, and fan 4 is located at the side of power supply unit；
As shown in Fig. 2, further including that the driving gear 6 being arranged between support base 5 and the first disconnecting unit 1 and second disconnect
The driven gear 7 being arranged between portion 2, two touchings of the end face of driving gear 6 perpendicular to the first disconnecting unit 1 and with the first disconnecting unit 1
The end face of point contact, driven gear 7 is contacted perpendicular to the second disconnecting unit 2 and with two contacts of the second disconnecting unit 2, driving gear 6
It is engaged with driven gear 7；Be equipped with support shaft 8 at 7 center of driving gear 6 and driven gear, support shaft 8 and driving gear 6 and
Rolling bearing is equipped between driven gear 7, support shaft 8 is welded on support base 5 by bracket 9；Fan 4 is located at electrical equipment
The shell of 3 side, fan 4 is welded on support base 5 by vertical plate；Support base 5 is equipped with touching switch 19, touching switch
19 are located at the lower section of air bag 14, and touching switch 19 is welded on support base 5 by connecting plate；Touching switch 19 is electrically connected with buzzing
Device, touching switch 19 is for starting and closing buzzer；
As shown in Fig. 2, being additionally provided with cylinder body 10 on support base 5, it is slidingly sealed with piston 11 in cylinder, is offered at the top of cylinder body 10
The opening 12 that can be blocked by piston 11, cylinder body 10 opening 12 at be communicated with retractable sack 13；Retractable sack 13 with opening 12 junctions be
The other end of fixing end, retractable sack 13 is telescopic end, and the telescopic end of retractable sack 13 is Nian Jie with driving gear 6, and retractable sack 13 is along it
The root circle of length direction and driving gear 6 is tangent；Cylinder body 10 is communicated with air bag 14, air bag 14 close to the side of electrical equipment 3
It is contacted with electrical equipment 3；
The end face of driving gear 6 and driven gear 7 includes fan-shaped conductive part 15 and insulation division 16, the driving gear
6 conductive part 15 and insulation division 16 can be contacted with two contacts of the first disconnecting unit 1, the conductive part 15 and insulation division of driven gear 7
16 can contact with two contacts of the second disconnecting unit 2；When the telescopic end expanded by heating of the retractable sack 13, driving gear 6 can be pushed
Driven gear 7 is driven to rotate, to form the normal work for the electrical equipment 3 that the connection of the first disconnecting unit 1 is disconnected with the second disconnecting unit 2
The radiating mode or the first disconnecting unit of the mode electrical equipment 3 that perhaps disconnection of the first disconnecting unit 1 is connected to the second disconnecting unit 2
1 and second safe mode of electrical equipment 3 that disconnects of disconnecting unit 2.
The cavity 17 being connected to retractable sack 13 is offered in piston 11 in the present embodiment, cavity 17 is connected to retractable sack 13
Place is equipped with solenoid valve 18, is equipped with temperature sensor on the outside of retractable sack 13, temperature sensor signal is connected with controller, and controller is pre-
Equipped with temperature threshold, specifically, temperature threshold may be configured as minimum temperature when electrical equipment 3 breaks down, and work as temperature sensing
When the temperature that device is sent to controller is more than temperature threshold, controller controls solenoid valve 18 and opens.
The principle and usage scenario of the power supply unit of the entrance guard management are as follows:
Electrical equipment 3 work during, electrical equipment 3 understand oneself generate heat, while the temperature of environment also can to
Electric equipment 3 has an impact.Due to being additionally provided with cylinder body 10 on support base 5, it is slidingly sealed with piston 11 in cylinder, is opened up at the top of cylinder body 10
There is the opening 12 that can be blocked by piston 11, is communicated with retractable sack 13 at the opening of cylinder body 10 12；Cylinder body 10 close to electrical equipment 3 one
Side is communicated with air bag 14, and air bag 14 is contacted with electrical equipment 3；So the induction of retractable sack 13 is 3 ambient enviroment of electrical equipment
Temperature, what air bag 14 incuded is the heat that electrical equipment 3 itself generates.
Usage scenario is divided into following four situation:
1. electrical equipment 3 works normally and environment temperature is very high, the air pressure at 10 both ends of cylinder body is still in a kind of relatively flat
The state of weighing apparatus, piston 11 will not move, and after the heat in environment is absorbed by retractable sack 13, the telescopic end of retractable sack 13 starts
Expansion, so the telescopic end of retractable sack 13 will push driving gear 6 and start to be rotated in the counterclockwise direction, driving gear 6 drives again
Driven gear 7 is rotated in a clockwise direction, and in the process, the insulation division 16 of driving gear 6 moves closer to 1 liang of the first disconnecting unit
Position between contact, the conductive part 15 of driven gear 7 move closer to the position between 2 liang of contacts of the second disconnecting unit, Zhi Dao
One disconnecting unit 1 is in an off state, and the second disconnecting unit 2 is in connected state, and electrical equipment 3 is in radiating mode at this time, at this time
Fan 4 and electrical equipment 3 are connected in series, and fan 4 radiates to power supply unit 3 after being powered, at the same time, because of 4 He of fan
Electrical equipment 3 is connected, and fan 4 has shared the original voltage of electrical equipment 3, that is, reduces the power of electrical equipment 3, also subtracts
Lack the fever of electrical equipment 3 under the high temperature conditions, so that the temperature in environment reduces, decreases the shadow to power supply unit
It rings.
2. electrical equipment 3 works normally and environment temperature is not high, the air pressure at 10 both ends of cylinder body is in a kind of relative equilibrium
State, piston 11 will not move too obvious because driving gear 6 is between 1 liang of contact of the first disconnecting unit, driven gear
7 between 2 liang of contacts of the second disconnecting unit, and the end face of driving gear 6 and driven gear 7 includes fan-shaped conductive part 15 and exhausted
Edge 16, so the conductive part 15 of driving gear 6 is placed exactly in initial position, that is, the conductive part 15 of driving gear 6 at this time
Between 1 liang of contact of the first disconnecting unit, the insulation division 16 of driven gear 7 between 2 liang of contacts of the second disconnecting unit, that is,
First disconnecting unit 1 is in connected state, and the second disconnecting unit 2 is in an off state, and electrical equipment 3, which is in, at this time works normally mould
Formula.
3. in 3 irregular working of electrical equipment, such as electrical equipment 3 is stuck, electrical equipment 3 can be abnormal at this time
Fever after the high temperature of the absorption electrical equipment 3 of air bag 14 contact with electrical equipment 3, expands rapidly and pushes piston 11 to separate
The side of air bag 14 is mobile, is opened at this time by the opening 12 that piston 11 blocks, and the air-flow in air bag 14 is rapid by opening 12
It flows into retractable sack 13, retractable sack 13 promptly pushes driving gear 6 to rotate counterclockwise, at this time under the percussion of air-flow
The angle that the angle that driving gear 6 rotates rotates when working normally than electrical equipment 3 is bigger, and driven gear 7 is in 6 band of driving gear
The dynamic lower angle rotated is also bigger, therefore the insulation division 16 of driving gear 6 and driven gear 7 is respectively positioned on the first disconnecting unit 1 and the
Between two disconnecting units 2, that is, the first disconnecting unit 1 and the second disconnecting unit 2 are in the state of disconnection, at this time at electrical equipment 3
In safe mode, so that the entire circuit that realization promptly cuts off electrical equipment 3 and fan 4 connects to power supply, prevents electricity consumption from setting
Standby 3 are burned because blocking；
While expansion rapidly after the high temperature that air bag 14 absorbs electrical equipment 3, air bag 14 is expanded rapidly and is moved down
To contacting with touching switch 19, so that buzzer be started, buzzer, which sounds an alarm, reminds relevant staff, thus the people that works
Member can obtain the information of the failure of electrical equipment 3 at the first time, adopt remedial measures in time.
4. when the temperature in environment is excessively high, and when the normal work of electrical equipment 3, the temperature of temperature sensor senses to environment
And controller is passed to, when the temperature that controller judgement receives is greater than temperature threshold, then control the opening of solenoid valve 18, retractable sack
Portion gas in 13 is entered in the cavity 17 in piston 11 by solenoid valve 18, avoids stretching because of the excessively high retractable sack 13 of environment temperature
Contracting excessively keeps driving gear 6 and 7 rotational angle of driven gear excessive, causes the first disconnecting unit 1 and the second disconnecting unit 2 disconnected
It opens.
Above-described is only the embodiments of the present invention, and the common sense such as well known specific structure and characteristic are herein in scheme
It does not describe excessively.It should be pointed out that for those skilled in the art, in the premise for not departing from the utility model structure
Under, several modifications and improvements can also be made, these also should be considered as the protection scope of the utility model, these all will not influence
The effect and patent practicability that the utility model is implemented.This application claims protection scope should be with the content of its claim
Subject to, the records such as specific embodiment in specification can be used for explaining the content of claim.
Claims (6)
1. the power supply unit of entrance guard management, it is characterised in that:
The major loop to be formed is connect with electrical equipment including power supply, major loop is equipped with the first disconnecting unit, and the first disconnecting unit is in parallel
It is connected with the current supply circuit of fan motor, the current supply circuit of fan motor is equipped with the second disconnecting unit, and the fan is located at power supply
The side of equipment；
It further include between two contact of support base and the first disconnecting unit between two contact of the driving gear being arranged and the second disconnecting unit
The driven gear of setting, the driving gear are engaged with driven gear；
It is additionally provided with cylinder body on support base, piston is slidingly sealed in cylinder, offers the opening that can be blocked by piston, cylinder at the top of cylinder body
Body opening is communicated with retractable sack；The retractable sack and opening junction are fixing end, and the other end of retractable sack is telescopic end, institute
Telescopic end and the driving gear for stating retractable sack are affixed, and retractable sack is tangent with the root circle of driving gear along its length；Cylinder body
Side close to power supply unit is communicated with air bag, and the air bag is contacted with power supply unit；
The end face of the driving gear and driven gear includes fan-shaped conductive part and insulation division, the conduction of the driving gear
Portion and insulation division can be contacted with two contacts of the first disconnecting unit, and the conductive part and insulation division of driven gear can be with the second disconnecting units
The contact of two contacts；When the telescopic end expanded by heating of the retractable sack, driving gear can be pushed to drive driven gear rotation, to be formed
The normal mode of operation or the first disconnecting unit for the electrical equipment that the connection of first disconnecting unit and the second disconnecting unit disconnect disconnect and the
The electrical equipment that the radiating mode or the first disconnecting unit and the second disconnecting unit of the electrical equipment of two disconnecting units connection disconnect
Safe mode.
2. the power supply unit of entrance guard management according to claim 1, it is characterised in that: offer and stretch in the piston
The cavity of capsule connection, cavity and retractable sack connectivity part are equipped with solenoid valve, and temperature sensor is equipped on the outside of the retractable sack, and temperature passes
Sensor signal is connected with controller, and controller is preset with temperature threshold, when the temperature that temperature sensor is sent to controller is more than
When temperature threshold, controller controls solenoid valve and opens.
3. the power supply unit of entrance guard management according to claim 1, it is characterised in that: the support base is equipped with touching and opens
It closes, the touching switch is located at the lower section of air bag, and the touching switch is electrically connected with buzzer, and the touching switch is for starting
With closing buzzer.
4. the power supply unit of entrance guard management according to claim 1, it is characterised in that: the driving gear is perpendicular to first
Disconnecting unit, the driven gear is perpendicular to the second disconnecting unit.
5. the power supply unit of entrance guard management according to claim 1, it is characterised in that: the telescopic end of the retractable sack is bonded
On driving gear.
6. the power supply unit of entrance guard management according to claim 1, it is characterised in that: support shaft and driving gear and driven
Rolling bearing is equipped between gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820939721.2U CN208258308U (en) | 2018-06-15 | 2018-06-15 | The power supply unit of entrance guard management |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820939721.2U CN208258308U (en) | 2018-06-15 | 2018-06-15 | The power supply unit of entrance guard management |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208258308U true CN208258308U (en) | 2018-12-18 |
Family
ID=64654321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820939721.2U Active CN208258308U (en) | 2018-06-15 | 2018-06-15 | The power supply unit of entrance guard management |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208258308U (en) |
-
2018
- 2018-06-15 CN CN201820939721.2U patent/CN208258308U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108770329A (en) | Entrance guard management for electric installation | |
| CN107834380B (en) | A kind of electrical anomaly early warning electric cabinet based on smart home device | |
| CN100575824C (en) | Electronic compression set | |
| CN203367751U (en) | Temperature indicator in switch cabinet | |
| CN208258308U (en) | The power supply unit of entrance guard management | |
| CN106781189A (en) | Fire-fighting warning device | |
| CN208226557U (en) | The power control of building room entry/exit management | |
| CN110661382A (en) | Intelligent overload detection alarm device and system for roller shutter door motor | |
| CN106097644A (en) | Temperature alarm system and clutch assembly | |
| JP2015037015A (en) | Power monitoring device of mobile and power monitoring method of mobile | |
| CN202880384U (en) | Scraper conveyor protection device and scraper conveyor | |
| CN107224024A (en) | A kind of semiconductor intelligent cooling helmet | |
| CN208951029U (en) | A kind of oil-circuit radiator high-temperature alarming device | |
| CN216719232U (en) | Monitoring device for intelligent power distribution equipment | |
| CN207231713U (en) | Casting machine extrusion pressure alarm protecting apparatus | |
| CN108649536A (en) | The power control of building room entry/exit management | |
| CN108980148A (en) | A kind of oil-circuit radiator high-temperature alarming device | |
| CN201937846U (en) | Universal intelligent heating device for self-service equipment | |
| CN206508103U (en) | Low-voltage direct-current electrical heating wearable device safety device | |
| CN208137995U (en) | A kind of security alarm device producing mine | |
| CN205829152U (en) | A kind of electric motor car high power capacity Ni-MH power cell overload protective device | |
| CN209198633U (en) | A kind of transforming plant DC power supply status monitoring device | |
| CN109164888A (en) | A kind of multi-action computer accident warning device | |
| CN208367186U (en) | A kind of smart home device multiplexing electric abnormality prior-warning device | |
| CN220774190U (en) | Explosion-proof remote control button box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |