CN205863890U - A kind of relay load short circuits, broken circuit detection circuit - Google Patents
A kind of relay load short circuits, broken circuit detection circuit Download PDFInfo
- Publication number
- CN205863890U CN205863890U CN201620846118.0U CN201620846118U CN205863890U CN 205863890 U CN205863890 U CN 205863890U CN 201620846118 U CN201620846118 U CN 201620846118U CN 205863890 U CN205863890 U CN 205863890U
- Authority
- CN
- China
- Prior art keywords
- relay
- resistance
- high side
- side current
- model
- 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
- Control And Safety Of Cranes (AREA)
Abstract
The utility model discloses a kind of relay load short circuits, broken circuit detection circuit.This utility model include model be the relay of HK4100F, model be high side current detection amplifier and the resistance of MAX4376HAUK；The common port of relay is electrically connected the first end and the RS end of high side current detection amplifier of resistance；Second end electrical connection high side current of resistance detects the RS+ end of amplifier, and one end that the second end of resistance is additionally operable to external loading electrically connects；The normally opened end of relay is for electrically connecting with the other end of external loading；The OUT terminal of high side current detection amplifier is as testing result outfan.This utility model can detect the connection of external loading, solves related management personnel and cannot know in tower crane, whether safety guard participates in the difficult problem controlled.
Description
Technical field
This utility model relates to a kind of relay load short circuits, broken circuit detection circuit.
Background technology
At present, country encourages to install relevant safety guard in tower crane (moment and display recording equipment, tower crane is prevented
Collision system etc.), but it is substantially all not only display and record, it is not involved in the control of tower crane, can not even if take part in control
Ensure the effectiveness controlled, say, that even if relevant device has control port output, but the control not accessing tower crane is returned
Road, and equipment cannot detect it and control whether output take part in the control of tower crane, even if so tower crane has alarm condition to occur,
Tower crane also will not be controlled thus stop the action to dangerous direction.
Utility model content
In order to improve the problems referred to above, the purpose of this utility model is to provide a kind of relay load short circuits, open circuit detection
Circuit.
To achieve these goals, the technical solution adopted in the utility model is as follows:
A kind of relay load short circuits, broken circuit detection circuit, be that the relay of HK4100F, model are including model
The high side current detection amplifier of MAX4376HAUK and resistance；The common port of relay be electrically connected resistance the first end and
The RS-end of high side current detection amplifier；The RS+ end of the second end electrical connection high side current detection amplifier of resistance, and resistance
One end of being additionally operable to external loading of the second end electrically connect；The normally opened end of relay is electrically connected for the other end with external loading
Connect；The OUT terminal of high side current detection amplifier is as testing result outfan.
Further, the processor electrically connecting the OUT terminal of high side current detection amplifier is also included.
Yet further, the display screen being connected with processor is also included.
Further, the resistance of described resistance is 0.1 Ω.
This utility model compared with prior art, has the following advantages and beneficial effect:
This utility model can detect the connection of external loading, solves related management personnel and cannot know in tower crane
Whether safety guard participates in the difficult problem controlled.
Accompanying drawing explanation
Fig. 1 is circuit diagram of the present utility model.
Detailed description of the invention
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings, and embodiment of the present utility model includes
But it is not limited to the following example.
Embodiment
As it is shown in figure 1, a kind of relay load short circuits, broken circuit detection circuit, including the relay that model is HK4100F,
Model is high side current detection amplifier and the resistance of MAX4376HAUK；The common port of relay is electrically connected the of resistance
One end and the RS-end of high side current detection amplifier；The RS+ end of the second end electrical connection high side current detection amplifier of resistance,
And one end that the second end of resistance is additionally operable to external loading electrically connects；The normally opened end of relay for another of external loading
End electrical connection；The OUT terminal of high side current detection amplifier is as testing result outfan.
Specifically, the resistance of described resistance is 0.1 Ω.
This utility model realizes break-make by high side current detection amplifier to external loading and detects.As it is shown in figure 1, this reality
Being common port with B1 in novel relay, A1 is normal-closed end, and C1 is normally opened end.Connect normally opened, i.e. it is often the case that control output
B1 and C1, namely electrically connects B1 and C1 end with external loading, such as: the equipment when device power and tower crane are not up to reported to the police
Can make the actuating of relay, now B1 and C1 is connected state.When external control signal is not connected to the control loop of tower crane,
I.e. A1, B1 and C1 are all in unsettled high-impedance state, Gu no current flows through resistance R, the OUT terminal output of high side current detection amplifier
For 0V.If by B1 and C1 short circuit, OUT terminal the most also can be made to be output as 0V, and the most constant, as normally connected
When receiving tower crane control loop, B1 end has voltage and constitutes loop together with C1 end, now has electric current through resistance R, OUT terminal
Then can export corresponding voltage, such that it is able to judge whether there is electric current through resistance R, this makes it possible to play detection outside negative
The short circuit carried and open circuit conditions.
Specifically, the processor electrically connecting the OUT terminal of high side current detection amplifier is also included.
By arranging processor, it is possible to receive the voltage of OUT terminal output, it is judged that the break-make of external circuit.As when tower crane report
Need to control loop time alert to disconnect, stop the risky operation of response.The voltage of the OUT terminal output before disconnecting and after disconnection should
Being different, the voltage before and after processor detects, just explanation has abnormal conditions.Various feelings are judged by processor
When condition occurs, whether the change in voltage of OUT meets logic, consequently facilitating people understand particular situation.
Specifically, the display screen being connected with processor is also included.
By arranging display screen, it is possible to detection data are shown on a display screen, outside enabling a user to get information about
Whether section load exists the situation of short circuit and open circuit.
According to above-described embodiment, this utility model just can be realized well.What deserves to be explained is, design based on said structure
On the premise of, for solving same technical problem, even if some made on this utility model are without substantial change or profit
Color, the essence of the technical scheme used is still as this utility model, therefore it should also be as at protection model of the present utility model
In enclosing.
Claims (4)
1. a relay load short circuits, broken circuit detection circuit, it is characterised in that include that model is the relay of HK4100F, type
Number it is high side current detection amplifier and the resistance of MAX4376HAUK；The common port of relay is electrically connected the first of resistance
End and the RS-end of high side current detection amplifier；The RS+ end of the second end electrical connection high side current detection amplifier of resistance, and
One end that second end of resistance is additionally operable to external loading electrically connects；The normally opened end of relay is for the other end with external loading
Electrical connection；The OUT terminal of high side current detection amplifier is as testing result outfan.
A kind of relay load short circuits, broken circuit detection circuit the most according to claim 1, it is characterised in that also include electricity
Connect the processor of the OUT terminal of high side current detection amplifier.
A kind of relay load short circuits, broken circuit detection circuit the most according to claim 2, it is characterised in that also include with
The display screen that processor is connected.
A kind of relay load short circuits, broken circuit detection circuit the most according to claim 3, it is characterised in that described resistance
Resistance be 0.1 Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620846118.0U CN205863890U (en) | 2016-08-05 | 2016-08-05 | A kind of relay load short circuits, broken circuit detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620846118.0U CN205863890U (en) | 2016-08-05 | 2016-08-05 | A kind of relay load short circuits, broken circuit detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205863890U true CN205863890U (en) | 2017-01-04 |
Family
ID=57657471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620846118.0U Active CN205863890U (en) | 2016-08-05 | 2016-08-05 | A kind of relay load short circuits, broken circuit detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205863890U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106159878A (en) * | 2016-08-05 | 2016-11-23 | 成都新泰高科技术有限公司 | A kind of relay load short circuits, broken circuit detection circuit |
| CN109921482A (en) * | 2019-03-06 | 2019-06-21 | 武汉盛硕电子有限公司 | A kind of charging cable, anti-overcharge method and the method that charging duration is freely set |
-
2016
- 2016-08-05 CN CN201620846118.0U patent/CN205863890U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106159878A (en) * | 2016-08-05 | 2016-11-23 | 成都新泰高科技术有限公司 | A kind of relay load short circuits, broken circuit detection circuit |
| CN109921482A (en) * | 2019-03-06 | 2019-06-21 | 武汉盛硕电子有限公司 | A kind of charging cable, anti-overcharge method and the method that charging duration is freely set |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1794001B (en) | Method for verifying smart battery failures by measuring input charging voltage and associated systems | |
| CN205646041U (en) | Battery pack , battery monitoring system and vehicle | |
| CN107255782B (en) | A kind of high-voltage interlocking detection circuit and interlocking signal detection method | |
| US9297860B2 (en) | High voltage service disconnect assembly and method for determining an isolation resistance fault of a battery pack | |
| CN201528224U (en) | High-tension line electrified detecting and locking device | |
| CN218473155U (en) | Current detection circuit and fault diagnosis device for HPLC communication unit | |
| CN205863890U (en) | A kind of relay load short circuits, broken circuit detection circuit | |
| CN103635821A (en) | Method and apparatus for diagnosing faults in a battery pack, and power relay assembly using same | |
| US11784482B2 (en) | Electrical connection monitoring using cable shielding | |
| CN103413105A (en) | Device for protecting shell of information safety device | |
| CN104521089A (en) | Battery system and motor vehicle with battery system | |
| CN206249234U (en) | A kind of construction for electricity for preventing hard disk backboard from burning | |
| CN103412231B (en) | Distribution short circuit self-checking unit and method | |
| CN105186490B (en) | Breaker and open-circuit system with zero curve and phase line burn out detection function | |
| CN105811368B (en) | Adaptivity zero line break protection device and system | |
| CN106159878A (en) | A kind of relay load short circuits, broken circuit detection circuit | |
| CN206517538U (en) | A kind of monitoring camera timely checking circuit | |
| CN206147828U (en) | Prevent tearing open circuit and code keypad | |
| CN202502139U (en) | High-voltage charged display device | |
| CN104934953A (en) | System with potential balancing component, particularly battery system | |
| CN211528516U (en) | Uncap detection circuitry and table meter | |
| CN205177015U (en) | ATM equipment with visual theftproof clamps puts | |
| CN212622995U (en) | Detection circuit and electronic equipment | |
| CN113533916A (en) | Multifunctional insulation detector based on insulation monitoring system | |
| CN205049686U (en) | A fault finding device for cutting off power supply tripping operation circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |