CN205905981U - Portable locomotive air conditioning unit testing and maintenance device - Google Patents
Portable locomotive air conditioning unit testing and maintenance device Download PDFInfo
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- CN205905981U CN205905981U CN201620930073.5U CN201620930073U CN205905981U CN 205905981 U CN205905981 U CN 205905981U CN 201620930073 U CN201620930073 U CN 201620930073U CN 205905981 U CN205905981 U CN 205905981U
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- 230000003137 locomotive effect Effects 0.000 title claims abstract description 46
- 238000004378 air conditioning Methods 0.000 title claims abstract description 38
- 238000012360 testing method Methods 0.000 title claims description 25
- 238000012423 maintenance Methods 0.000 title abstract description 8
- 238000001514 detection method Methods 0.000 claims abstract description 76
- 238000009413 insulation Methods 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 claims description 16
- 239000003054 catalyst Substances 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims description 7
- 238000011835 investigation Methods 0.000 abstract description 3
- 238000005070 sampling Methods 0.000 description 10
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 210000004247 hand Anatomy 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The utility model relates to a signal device field discloses a portable locomotive air conditioning unit detection device, include: main circuit, control circuit and detection circuitry, main circuit connection between external power source and load, be used for with external power source's electric energy offers the load, including current -voltage detection device in the main circuit, current -voltage detection device is used for offering the electric current and the voltage of load are sampled, control circuit includes the on -off control device, and this on -off control device is used for control the main circuit break -make, detection circuitry is used for detecting the insulating value of load, and wherein external power source be used for to main circuit, control circuit and detection circuitry power supply. Realized having improved work efficiency to locomotive air conditioning unit failure position's quick investigation through above -mentioned technical scheme, practiced thrift the cost of overhaul, reduced maintenance person person working strength.
Description
Technical field
This utility model is related to advertiser, in particular it relates to a kind of air conditioning unit detection means of Portable locomotive.
Background technology
Air-conditioning is the essential condition for passenger's creating comfortable environment in train, and equally air conditioning unit is locomotive air conditioner system
Core, and its maintenance brings many inconvenience and worries for staff.Wherein, air conditioning system circuit long, connect
Point is many, limited and be difficult to accurately judge using circuit tester, megameter measurement handss space, sometimes for be not delayed overhaul friendship car when
Between, adopt the replacing of whole unit more, increased cost and cause unnecessary waste of human resource simultaneously.In order to improve work effect
Rate, the staff labor intensity that reduces, minimizing locomotive stopping time, a kind of cost-effective, reduction security risk Portable locomotive air-conditioning of urgent need
Machine set detecting device.
Utility model content
The purpose of this utility model is to provide a kind of air conditioning unit detection means of Portable locomotive, this equipment utilization signal
Sampling and transmission detect the air conditioning unit trouble location of locomotive or for standby air conditioning unit test run detection.
To achieve these goals, this utility model provides a kind of air conditioning unit detection means of Portable locomotive, comprising: main
Circuit, control circuit and testing circuit；Described main circuit is connected between external power source and load, for by described external power source
Electric energy be supplied to described load；Described main circuit includes current/voltage detection means, and described current/voltage detection means is used
In sampling to the electric current and voltage being supplied to described load；Described control circuit includes on-off control device, this break-make control
Device processed is connected between described current/voltage detection means and described main circuit, for controlling described main circuit break-make；Described
Testing circuit includes the value detection device that insulate, and this insulation value detection device is connected with described load, for detecting described load absolutely
Edge value；And wherein said external power source is used for powering to described main circuit, control circuit and testing circuit.By above-mentioned technology
Scheme achieves the quick investigation to locomotive air conditioner unit trouble location, improves work efficiency, has saved the cost of overhaul, reduces
Maintainer labor intensity.
Preferably, described load as one below person: indoor fan, outdoor fan and compressor.
Preferably, the air conditioning unit detection means of this Portable locomotive also includes load protection circuit, described load protection electricity
Road is connected with described external power source, described control circuit and described load respectively, and wherein, described external power source is used for bearing to described
Carry protection circuit to power, the outfan of described load protection circuit is connected with the input of described control circuit.
Preferably, described load protection circuit includes audible-visual annunciator and high-low pressure detection control apparatus, wherein, described
High-low pressure detection control apparatus is used for carrying out force samples to described load, and force samples result is exported to described control
Circuit, described audible-visual annunciator is used for load high-low pressure fault is reported to the police.
Preferably, also include current/voltage protection circuit to be connected between described main circuit and described control circuit, described
Main circuit in also include driving display circuit and temperature sensing circuit, also include in described main circuit driving display circuit and
Temperature sensing circuit, described driving display circuit includes digital display screen, and described temperature sensing circuit includes temperature sensing
Device, wherein, described current/voltage protection circuit includes overcurrent-overvoltage control device, and described overcurrent-overvoltage control device is used for will
Described load current voltage condition exports to described control circuit, and described digital display screen is used for the described load of real-time display and institute
State the operating current voltage of control circuit, described temperature sensor is used for detecting the temperature of described indoor fan air outlet.
Preferably, the air conditioning unit detection means of this Portable locomotive also includes Switching Power Supply, for by described external power source
The alternating current providing is converted to unidirectional current, and wherein, described Switching Power Supply has 2, respectively first switch power supply and second switch
Power supply, described first switch power supply is connected between described external power source and described control circuit, and described second switch power supply is even
It is connected between described external power source and described load protection circuit.
Preferably, described external power source is three-phase four-wire system power supply.
Preferably, described on-off control device includes relay and catalyst, the normally opened contact of described relay with described
The electric power loop series connection of catalyst.
Preferably, it is provided with voltage conversion circuit in described testing circuit, described voltage conversion circuit is used for described outside
The voltage conversion of power supply becomes one below person to described load output: 0v, 500v, 1000v.
By technique scheme, when locomotive air conditioner unit catastrophic failure needs Measuring error or faces turn(a)round and returns factory's maintenance
Can achieve the quick investigation to locomotive air conditioner unit trouble location during test run, improve work efficiency, save the cost of overhaul, reduce dimension
Repair person works' intensity.
Other features and advantages of the utility model will be described in detail in subsequent specific embodiment part.
Brief description
Accompanying drawing is used to provide and further understands to of the present utility model, and constitutes a part for description, and following
Specific embodiment be used for together explaining this utility model, but do not constitute to restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the Portable locomotive air conditioning unit detection means schematic diagram that this utility model provides；
Fig. 2 is the schematic diagram of the air conditioning unit detection means of Portable locomotive that this utility model embodiment provides.
Specific embodiment
Below in conjunction with accompanying drawing, specific embodiment of the present utility model is described in detail.It should be appreciated that herein
Described specific embodiment is merely to illustrate and explains this utility model, is not limited to this utility model.
In this utility model, in the case of illustrating on the contrary, the noun of locality of use as " upper and lower, left and right, interior,
Refer to outward " direction of refer to the attached drawing, therefore, use direction term is used to explanation not to limit this utility model.
Below in conjunction with accompanying drawing of the present utility model, the technical scheme in this utility model embodiment is carried out clear, complete
Site preparation describes.Obviously, described embodiment is only a part of embodiment of this utility model, rather than whole embodiments.Base
Embodiment in this utility model, the institute that those of ordinary skill in the art are obtained under the premise of not making creative work
There is other embodiment, broadly fall into the scope of this utility model protection.
Fig. 1 shows the schematic diagram of the air conditioning unit detection means of Portable locomotive that this utility model provides, as Fig. 1 institute
Show, embodiment of the present utility model provides a kind of air conditioning unit detection means of Portable locomotive, this device may include that main electricity
Road 20, control circuit 30 and testing circuit 40, wherein said main circuit 20 is connected between external power source 10 and load 60, is used for
The electric energy of described external power source 10 is supplied to described load 60, it is to avoid described load 60 and described external power source 10 directly connect
Connect；Described main circuit 20 includes current/voltage detection means 100, and described current/voltage detection means 100 is used for being supplied to
Described load 60 electric current and voltage sampled, and then understand described external power source 10 be supplied to described load 60 electric current and
The situation of voltage；Described control circuit 30 includes on-off control device 200, and this on-off control device 200 is connected to described electric current
Between voltage check device 100 and described main circuit 20, for controlling described main circuit 20 break-make, main circuit can be controlled at any time
20 on off operating mode；Described testing circuit 40 includes the value detection device 300 that insulate, and this insulation value detection device 300 is negative with described
Carry 60 connections, for detecting described load 60 insulation values, and then understand described load 60 insulation values situations；And described external electrical
Source 10 is used for powering to described main circuit 20, control circuit 30 and testing circuit 40, can be right in the case of not starting locomotive
Locomotive air conditioner unit carries out Measuring error operation.
By technique scheme, when locomotive air conditioner unit catastrophic failure or when facing turn(a)round, can quickly judge that locomotive is empty
Adjust unit trouble location, equally can distinguish is power supply box problem or unit problem leads to described locomotive air conditioner unit fault；
So substantially increase work efficiency, reduce the working strength of maintainer, reduce security risk, decrease because burst therefore
Hinder and the time of temporary parking maintenance；Becoming present aspect, it is to avoid whole because worrying that delay maintenance hands over car time and being forced to change
Air conditioning unit defect.
In an embodiment, the air conditioning unit detection means of described Portable locomotive also includes load protection circuit 50, described negative
Carry protection circuit 50 to be connected with described external power source 10, described control circuit 30 and described load 60 respectively；Wherein, described outside
Power supply 10 is used for powering to described load protection circuit 50, the outfan of described load protection circuit 50 and described control circuit 30
Input connect, described load protection circuit 50 includes audible-visual annunciator and high-low pressure detection control apparatus 500；Wherein,
Described high-low pressure detection control apparatus 500 be used for described load 60 carry out force samples and by force samples result export to
Described control circuit 30, described audible-visual annunciator is used for load high-low pressure fault is reported to the police.When the inspection of described high-low pressure
When the load pressure that surveying control device 500 provides samples abnormal, described audible-visual annunciator starts to report to the police accordingly, described height
Pressure detection control apparatus 500 exports force samples result to described control circuit 30, described logical in described control circuit 30
Disconnected control device 200 controls the power-off of described main circuit 20, and described control circuit 30 is receiving abnormal force samples result
When, disconnect main circuit 20；Described load 60 can be one below person: indoor fan, outdoor fan and compressor.
In an embodiment, also include current/voltage protection circuit 70 and be connected to described main circuit 20 and described control circuit 30
Between, also include in described main circuit 20 driving display circuit and temperature sensing circuit, also include in described main circuit 20
Drive display circuit and temperature sensing circuit, described driving display circuit includes digital display screen, described temperature sensing circuit
Include temperature sensor, wherein, described current/voltage protection circuit 70 includes overcurrent-overvoltage control device 400, described mistake
Flow through pressure control device 400 for exporting described load current voltage condition to described control circuit 30, described digital-scroll technique
Shield the operating current voltage for the described load 60 of real-time display and control circuit 30, described temperature sensor is used for detecting described
The temperature of indoor fan air outlet, is detected the temperature in described indoor fan air port, and then judges institute by described temperature sensor
State refrigerating capacity situation.
In an embodiment, the air conditioning unit detection means of described Portable locomotive also includes Switching Power Supply, for will be described outer
Portion's power supply 10 provide alternating current be converted to unidirectional current, wherein, described Switching Power Supply has 2, respectively first switch power supply a and
Second switch power supply b, described first switch power supply a is connected between described external power source 10 and described control circuit 30, described
Second switch power supply b is connected between described external power source 10 and described load protection circuit 50；Described first switch power supply a uses
In the 220v alternating current of described external power source 10 is converted to 110v DC power transmission to described control circuit 30, described second opens
Close power supply b and be converted to 24v DC power transmission to described load protection for the 220v alternating current providing described external power source 10
Circuit 50.
In an embodiment, described external power source 10 can be three-phase four-wire system power supply, it is possible to provide two kinds of choosings of 380v and 220v
The alternating current selected.
In an embodiment, on-off control device 200 includes relay and catalyst, the normally opened contact of described relay and institute
State the electric power loop series connection of catalyst, Control catalyst disconnects when loading 60 and over-pressed, under-voltage, excessively stream, electric leakage,
And then main circuit 20 power-off；When described relay adhesive, control contactor adhesive simultaneously.
In an embodiment, it is provided with voltage conversion circuit in testing circuit 40, described voltage conversion circuit is used for will be described outer
The voltage conversion of portion's power supply 10 becomes one below person to load 60 output: 0v, 500v, 1000v, provides different for described load 60
Voltage, and then the situation of change by value detection device 300 detection load 60 insulation values under different voltage environment that insulate；Can be by
Situation of change under different voltage environment for the described insulation values judges the safety of described locomotive air conditioner unit.
The air conditioning unit detection means of Portable locomotive this utility model being provided below in conjunction with specific embodiment is further
Describe in detail.
First embodiment
As shown in Fig. 2 the air conditioning unit detection means of Portable locomotive that this utility model embodiment provides includes: main circuit
20th, control circuit 30 and testing circuit 40, wherein said main circuit 20 is connected between external power source 10 and load 60；Described master
Circuit 20 includes current/voltage detection means 100；Also include load in the air conditioning unit detection means of described Portable locomotive to protect
Protection circuit 50, described load protection circuit 50 is respectively with described external power source 10, described control circuit 30 and described load 60 even
Connect, wherein, described external power source 10 is used for powering to described load protection circuit 50, the outfan of described load protection circuit 50
It is connected with the input of described control circuit 30, described load protection circuit 50 includes audible-visual annunciator and high-low pressure detection control
Device 500 processed；Detection means also includes current/voltage protection circuit 70 and is connected to described main circuit 20 and described control circuit 30
Between, also include current/voltage protection circuit 70 in described main circuit 20, drive display circuit and temperature sensing circuit, its
In, described current/voltage protection circuit 70 includes overcurrent-overvoltage control device 400, and described driving display circuit includes number
Display screen, described temperature sensing circuit includes temperature sensor.Described control circuit 30 includes on-off control device 200, should
On-off control device 200 is connected between described current/voltage detection means 100 and described main circuit 20；Described testing circuit 40
Including insulation value detection device 300, this insulation value detection device 300 is connected with described load 60, in described testing circuit 40 also
Be provided with voltage conversion circuit, described voltage conversion circuit be used for by the voltage conversion of described external power source 10 become one below person to
Load 60 output: 0v, 500v, 1000v；Also include Switching Power Supply in the air conditioning unit detection means of described Portable locomotive, be used for
The alternating current that described external power source 10 is provided is converted to unidirectional current；Wherein, described Switching Power Supply has 2, and respectively first opens
Close power supply a and second switch power supply b, described first switch power supply a is connected to described external power source 10 and described control circuit 30
Between, described second switch power supply b is connected between described external power source 10 and described load protection circuit 50；Work as locomotive air conditioner
When unit catastrophic failure needs maintenance, the external power source 10 using three-phase four-wire system is powered, and three-phase four-wire system external power source 10 is
Main circuit 20 provides the alternating current of 380v, and respectively testing circuit 40, control circuit 30 and load protection circuit 50 provides 220v
Alternating current, the 220v alternating current that three-phase four-wire system external power source 10 provides is converted to 110v unidirectional current by first switch power supply a
It is conveyed to control circuit 30, the 220v alternating current that three-phase four-wire system external power source 10 provides is converted to 24v by second switch power supply b
Unidirectional current is conveyed to load protection circuit 50.Current/voltage detection means 100 in main circuit 20 is to the electricity being supplied to compressor
Stream and voltage are sampled, then are detected current/voltage by the overcurrent-overvoltage control device 400 in current/voltage protection circuit 70
The current-voltage sampling for compressor that device 100 provides exports to control circuit 30；Temperature sensor detects indoor fan
Draught temperature.High-low pressure detection means 500 in load protection circuit 50 carries out force samples and adopts pressure to compressor
Sample situation exports to control circuit 30.Control circuit 30 after receiving above-mentioned current-voltage sampling and above-mentioned force samples, root
Make corresponding actions according to sampling situations, specifically, when control circuit 30 receives current-voltage sampling for overcurrent-overvoltage, control
The normally opened contact of circuit 30 repeat circuit is connected with catalyst electric power loop, catalyst during control circuit 30 control relay adhesive
Disconnect, main circuit 20 disconnects simultaneously；When control circuit 30 receive compressor force samples too high, audible-visual annunciator start report
Alert, during control circuit 30 control relay adhesive, catalyst disconnects, and main circuit 20 disconnects simultaneously.Testing circuit 40 is turned by voltage
Change circuit and export 0v voltage to compressor, insulation value detection device 300 detects the insulation values of compressor.Driving in main circuit 20
Nixie display in display circuit shows compressor and the current/voltage of control circuit 30 in real time.
Second embodiment
As shown in Fig. 2 the air conditioning unit detection means of Portable locomotive that this utility model embodiment provides includes: main circuit
20th, control circuit 30 and testing circuit 40, wherein said main circuit 20 is connected between external power source 10 and load 60；Described master
Circuit 20 includes current/voltage detection means 100；Also include load in the air conditioning unit detection means of described Portable locomotive to protect
Protection circuit 50, described load protection circuit 50 is respectively with described external power source 10, described control circuit 30 and described load 60 even
Connect, wherein, described external power source 10 is used for powering to described load protection circuit 50, the outfan of described load protection circuit 50
It is connected with the input of described control circuit 30, described load protection circuit 50 includes audible-visual annunciator and high-low pressure detection control
Device 500 processed；Detection means also includes current/voltage protection circuit 70 and is connected to described main circuit 20 and described control circuit 30
Between, also include current/voltage protection circuit 70 in described main circuit 20, drive display circuit and temperature sensing circuit, its
In, described current/voltage protection circuit 70 includes overcurrent-overvoltage control device 400, and described driving display circuit includes number
Display screen, described temperature sensing circuit includes temperature sensor.Described control circuit 30 includes on-off control device 200, should
On-off control device 200 is connected between described current/voltage detection means 100 and described main circuit 20；Described testing circuit 40
Including insulation value detection device 300, this insulation value detection device 300 is connected with described load 60, in described testing circuit 40 also
Be provided with voltage conversion circuit, described voltage conversion circuit be used for by the voltage conversion of described external power source 10 become one below person to
Load 60 output: 0v, 500v, 1000v；Also include Switching Power Supply in the air conditioning unit detection means of described Portable locomotive, be used for
The alternating current that described external power source 10 is provided is converted to unidirectional current；Wherein, described Switching Power Supply has 2, and respectively first opens
Close power supply a and second switch power supply b, described first switch power supply a is connected to described external power source 10 and described control circuit 30
Between, described second switch power supply b is connected between described external power source 10 and described load protection circuit 50；Work as locomotive air conditioner
When unit catastrophic failure needs maintenance, the external power source 10 using three-phase four-wire system is powered, and three-phase four-wire system external power source 10 is
Main circuit 20 provides the alternating current of 380v, and respectively testing circuit 40, control circuit 30 and load protection circuit 50 provides 220v
Alternating current, the 220v alternating current that three-phase four-wire system external power source 10 provides is converted to 110v unidirectional current by first switch power supply a
It is conveyed to control circuit 30, the 220v alternating current that three-phase four-wire system external power source 10 provides is converted to 24v by second switch power supply b
Unidirectional current is conveyed to load protection circuit 50.Current/voltage detection means 100 in main circuit 20 is to being supplied to indoor fan
Electric current and voltage are sampled, then are examined current/voltage by the overcurrent-overvoltage control device 400 in current/voltage protection circuit 70
The current-voltage sampling for indoor fan that surveying device 100 provides exports to control circuit 30；Temperature sensor detection is indoor
Air blower temperature.High-low pressure detection means 500 in load protection circuit 50 carries out force samples and incites somebody to action to indoor fan
Force samples situation exports to control circuit 30.Control circuit 30 is receiving above-mentioned current-voltage sampling and above-mentioned force samples
Afterwards, corresponding actions are made according to sampling situations, specifically, when control circuit 30 receives current-voltage sampling normally constantly, control
Circuit 30 processed does not make any action；When the force samples that control circuit 30 receives indoor fan are normal, audible-visual annunciator
Do not work, control circuit 30 does not make any action.Testing circuit 40 passes through voltage conversion circuit and exports 500v to indoor fan
Voltage, insulation value detection device 300 detects the insulation values of indoor fan.The number driving in display circuit in main circuit 20 shows
Show that device shows indoor fan and the current/voltage of control circuit 30 in real time.
Describe preferred implementation of the present utility model above in association with accompanying drawing in detail, but, this utility model does not limit
Detail in above-mentioned embodiment, in range of the technology design of the present utility model, can be to skill of the present utility model
Art scheme carries out multiple simple variant, and these simple variant belong to protection domain of the present utility model.
It is further to note that each particular technique feature described in above-mentioned specific embodiment, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, this utility model is to each
Plant possible compound mode no longer separately to illustrate.
Additionally, combination in any can also be carried out, as long as it is not disobeyed between various different embodiment of the present utility model
Carry on the back thought of the present utility model, it equally should be considered as content disclosed in the utility model.
Claims (9)
1. a kind of air conditioning unit detection means of Portable locomotive is it is characterised in that include: main circuit (20), control circuit (30)
With testing circuit (40)；
Described main circuit (20) is connected between external power source (10) and load (60), for by the electricity of described external power source (10)
It is provided that to described load (60)；
Described main circuit (20) includes current/voltage detection means (100), and it is right that described current/voltage detection means (100) is used for
It is supplied to the electric current of described load (60) and voltage is sampled；
Described control circuit (30) includes on-off control device (200), and this on-off control device (200) is connected to described electric current electricity
Between pressure detection means (100) and described main circuit (20), for controlling described main circuit (20) break-make；
Described testing circuit (40) includes insulation value detection device (300), this insulation value detection device (300) and described load
(60) connect, for detecting described load (60) insulation values；And
Wherein, described external power source (10) is used for the power supply of described main circuit (20), control circuit (30) and testing circuit (40).
2. the air conditioning unit detection means of Portable locomotive according to claim 1 is it is characterised in that described load (60) is
One below person: indoor fan, outdoor fan and compressor.
3. the air conditioning unit detection means of Portable locomotive according to claim 2 is it is characterised in that also include load protection
Circuit (50), described load protection circuit (50) respectively with described external power source (10), described control circuit (30) and described negative
Carry (60) to connect；
Wherein, described external power source (10) is used for described load protection circuit (50) power supply, described load protection circuit (50)
Outfan be connected with the input of described control circuit (30).
4. the air conditioning unit detection means of Portable locomotive according to claim 3 is it is characterised in that described load protection is electric
Road (50) includes audible-visual annunciator and high-low pressure detection control apparatus (500)；
Wherein, described high-low pressure detection control apparatus (500) is used for described load (60) carried out force samples and by pressure
Sampled result exports to described control circuit (30), and described audible-visual annunciator is used for load high-low pressure fault is reported to the police.
5. the air conditioning unit detection means of Portable locomotive according to claim 3 is it is characterised in that also include current/voltage
Protection circuit (70) is connected between described main circuit (20) and described control circuit (30), also wraps in described main circuit (20)
Include driving display circuit and temperature sensing circuit, described driving display circuit includes digital display screen, described temperature sensing electricity
Road includes temperature sensor；
Wherein, described current/voltage protection circuit (70) includes overcurrent-overvoltage control device (400), and described overcurrent-overvoltage controls
Device (400) is used for exporting described load current voltage condition to described control circuit (30), and described digital display screen is used for
Show the operating current voltage of described load (60) and described control circuit (30) in real time, described temperature sensor is used for detecting institute
State the temperature of indoor fan air outlet.
6. the air conditioning unit detection means of Portable locomotive according to claim 1 is it is characterised in that also include switch electricity
Source, the alternating current for providing described external power source (10) is converted to unidirectional current；
Wherein, described Switching Power Supply has 2, respectively first switch power supply (a) and second switch power supply (b), and described first opens
Close power supply (a) to be connected between described external power source (10) and described control circuit (30), described second switch power supply (b) connects
Between described external power source (10) and described load protection circuit (50).
7. the air conditioning unit detection means of Portable locomotive according to claim 1 is it is characterised in that described external power source
(10) it is three-phase four-wire system power supply.
8. the air conditioning unit detection means of Portable locomotive according to claim 1 is it is characterised in that described break-make controls dress
Put (200) and include relay and catalyst, the normally opened contact of described relay is connected with the electric power loop of described catalyst.
9. the air conditioning unit detection means of Portable locomotive according to claim 1 is it is characterised in that described testing circuit
(40) it is provided with voltage conversion circuit in, described voltage conversion circuit is used for for the voltage conversion of described external power source (10) becoming following
One to described load (60) export: 0v, 500v, 1000v.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620930073.5U CN205905981U (en) | 2016-08-24 | 2016-08-24 | Portable locomotive air conditioning unit testing and maintenance device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620930073.5U CN205905981U (en) | 2016-08-24 | 2016-08-24 | Portable locomotive air conditioning unit testing and maintenance device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205905981U true CN205905981U (en) | 2017-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620930073.5U Active CN205905981U (en) | 2016-08-24 | 2016-08-24 | Portable locomotive air conditioning unit testing and maintenance device |
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| Country | Link |
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| CN (1) | CN205905981U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111855243A (en) * | 2020-07-30 | 2020-10-30 | 中车唐山机车车辆有限公司 | Detection system for waste discharge device of motor train unit |
| CN113775551A (en) * | 2021-09-22 | 2021-12-10 | 中船黄埔文冲船舶有限公司 | Portable test tool, test detection method and device for pipeline fan |
-
2016
- 2016-08-24 CN CN201620930073.5U patent/CN205905981U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111855243A (en) * | 2020-07-30 | 2020-10-30 | 中车唐山机车车辆有限公司 | Detection system for waste discharge device of motor train unit |
| CN111855243B (en) * | 2020-07-30 | 2022-08-12 | 中车唐山机车车辆有限公司 | Detection system for waste discharge device of motor train unit |
| CN113775551A (en) * | 2021-09-22 | 2021-12-10 | 中船黄埔文冲船舶有限公司 | Portable test tool, test detection method and device for pipeline fan |
| CN113775551B (en) * | 2021-09-22 | 2024-03-26 | 中船黄埔文冲船舶有限公司 | Portable test tool, test detection method and device for pipeline fan |
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