CN218675222U - Circuit detection device - Google Patents
Circuit detection device Download PDFInfo
- Publication number
- CN218675222U CN218675222U CN202222904448.9U CN202222904448U CN218675222U CN 218675222 U CN218675222 U CN 218675222U CN 202222904448 U CN202222904448 U CN 202222904448U CN 218675222 U CN218675222 U CN 218675222U
- Authority
- CN
- China
- Prior art keywords
- circuit
- emergency
- indicator light
- detection
- working
- 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
- 238000001514 detection method Methods 0.000 title claims abstract description 103
- 238000003825 pressing Methods 0.000 claims abstract description 4
- 238000012360 testing method Methods 0.000 claims description 12
- 230000004913 activation Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012031 short term test Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Images
Landscapes
- Keying Circuit Devices (AREA)
Abstract
The application discloses circuit detection device includes: the working circuit comprises a first power supply and a motor; the emergency circuit breaker is connected with the working circuit and comprises an emergency stop button, and the emergency circuit breaker is controlled to be disconnected by pressing the emergency stop button; and the detection circuit enables the working circuit to still keep a working state after the emergency stop button is pressed down in a starting state, and judges the working state of the emergency open switch according to the state of a first indicator lamp in the detection circuit. The circuit detection device of this application makes detection circuit under the starting condition through adding detection circuitry in the circuit system who comprises operating circuit and emergency shutdown switch, even press emergency stop button on the emergency shutdown switch also can make operating circuit keep operating condition, still indicate whether emergency shutdown switch breaks down through first pilot lamp to accomplish emergency shutdown switch's detection fast under the prerequisite of not breaking operating circuit, moreover, the steam generator is simple in structure, it is convenient to detect.
Description
Technical Field
The utility model relates to an electron electric power technical field specifically relates to a circuit detection device.
Background
At present, an EMO (emergency off) switch, i.e., an emergency off switch, is provided on high-precision detection equipment such as an exposure machine or a coating machine for manufacturing a color film substrate and an array substrate in a liquid crystal display device, and is controlled by an EMO button. According to the regulations related to the use of the device, the function of the EMO switch needs to be checked every certain time (for example, one year) to determine whether the EMO switch can be normally used. When the function of the EMO switch is checked, the EMO button is pressed to disconnect the power supply of the connected equipment, the equipment stops working, at the moment, because the whole machine is suddenly powered off, the electric parts in the equipment are easily damaged, even the machine table cannot be repaired, and after the checking is finished, the maintenance and replacement cost of the damaged valuable components is increased, and the equipment cannot be used in time.
In order to avoid damaging instruments, a method for measuring circuit voltage is adopted at present to judge whether the function of an EMO switch is normal, but the condition in the EMO switch cannot be actually and effectively detected only by simply measuring the circuit voltage, for example, the condition cannot be timely detected when an EMO button is damaged or an EMO internal mechanism is abnormal, so that in actual use, a working circuit cannot be quickly disconnected even if the EMO button is pressed down, once a real danger occurs, the EMO button cannot be started, a major safety accident may occur, and the life safety of an operator is endangered.
Therefore, the current detection method and apparatus for the EMO switch also have a great disadvantage.
SUMMERY OF THE UTILITY MODEL
In view of this, an object of the present invention is to provide a circuit detection device, which can rapidly complete the fault detection of an emergency shutdown switch on the premise of not disconnecting a working circuit, thereby avoiding the damage of the various components and parts in the working circuit, which cannot be recovered due to sudden power failure, and improving the detection efficiency.
According to the utility model discloses, a circuit detection device is provided, include:
an operating circuit including a first power source and a motor;
the emergency circuit breaker is connected with the working circuit and comprises an emergency stop button, and the emergency circuit breaker is controlled to be disconnected by pressing the emergency stop button; and
the detection circuit is connected in a circuit system consisting of the working circuit and the emergency circuit breaker, the working circuit is still kept in a working state after the emergency stop button is pressed down by the detection circuit in a starting state, and the working state of the emergency circuit breaker is judged according to the state of a first indicator lamp in the detection circuit.
Optionally, the detection circuit includes an indication branch and a detection branch connected in parallel, the indication branch includes the first indicator light, and the detection branch includes a control switch to control the starting state of the detection circuit and the working state of the working circuit.
Optionally, the detection branch includes a control switch and a second indicator light connected in series, the detection branch is connected to the working circuit, and the working state of the working circuit is indicated by the state of the second indicator light.
Optionally, the emergency shutdown switch is connected in the working circuit, and is connected in series with the first indicator light to form the indicator branch, and when the emergency stop button is pressed, the emergency shutdown switch is turned off, and the working circuit is turned off.
Optionally, after the control switch is closed to enable the detection circuit to be in a starting state and the emergency stop button is pressed, if the second indicator light is turned on and the first indicator light is turned off, the emergency shutdown switch works normally; and if the second indicator light is turned on and the first indicator light is turned on, the emergency circuit breaker is in fault.
Optionally, the control switch includes a single pole single throw switch and an emergency disconnect switch.
Optionally, the circuit detection device further includes:
the relay comprises a coil, an armature and a reaction spring, wherein the relay, the emergency circuit breaker and a second power supply are connected in series to form an auxiliary circuit, the armature is connected in the working circuit, the emergency stop button is pressed to close the emergency circuit breaker, the second power supply controls the reaction spring to separate the armature from the working circuit and break the working circuit.
Optionally, the coil and the control switch are connected in series to form the detection branch, and after the control switch is turned off to enable the detection circuit to be in a starting state and the emergency stop button is pressed down, if the first indicator light is turned on, the emergency shutdown switch works normally; and if the first indicator light is turned off, the emergency shutdown switch fails.
Optionally, the armature and the first indicator light are connected in series to form the indication branch, the detection branch further includes a second indicator light connected in series with the control switch, when the control switch is closed, the detection circuit is in a start state, and the emergency stop button is pressed, and if the second indicator light is turned on and the first indicator light is turned off, the auxiliary circuit normally operates; and if the second indicator light is turned on and the first indicator light is turned on, the auxiliary circuit is in fault.
Optionally, the first indicator light and the second indicator light are both LED lights.
The utility model provides a circuit detection device adds detection circuitry in the circuit system who comprises working circuit and emergency circuit breaker originally, and detection circuitry is under the starting condition, even press emergency stop button on the emergency circuit breaker also can make the working circuit that will break off originally still keep operating condition, can also instruct whether emergency circuit breaker breaks down through the first pilot lamp in the detection circuitry, with the detection of accomplishing emergency circuit breaker fast under the prerequisite of not breaking working circuit, can keep the stability of working circuit work, avoid because the unable prosthetic problem of board even is damaged to the electric spare part that the working circuit breaks off suddenly and causes, can detect out the circuit at emergency circuit breaker place fast again and whether have the trouble, accomplish the detection on time, holistic circuit structure is simple, the cost is extremely low, and it is high-efficient convenient to detect.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings.
FIGS. 1a and 1b are schematic diagrams illustrating the operation of an operating circuit with an emergency shutdown switch when the emergency stop button is not pressed and when the emergency stop button is pressed, respectively;
fig. 2a and fig. 2b are schematic diagrams illustrating an operating state of the circuit detecting device according to the first embodiment of the present invention when the emergency stop button is not pressed and when the emergency stop button is pressed, respectively;
fig. 3a and 3b are schematic diagrams illustrating an operating state of a circuit detecting device according to a second embodiment of the present invention when an emergency stop button is not pressed and when the emergency stop button is pressed;
FIGS. 4a and 4b are schematic views showing the operation states of the entire operating circuit when the emergency cut-off switch is directly connected to the operating circuit, when the emergency stop button is not pressed, and when the emergency stop button is pressed, respectively;
fig. 5a and 5b are schematic diagrams illustrating an operating state of a circuit detecting device according to a third embodiment of the present invention when an emergency stop button is not pressed and when the emergency stop button is pressed;
fig. 6a and 6b show schematic diagrams of an operating state of a circuit detection device according to a fourth embodiment of the present invention when the emergency stop button is not pressed and when the emergency stop button is pressed.
Detailed Description
The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth in detail. It will be apparent to one skilled in the art that the present invention may be practiced without these specific details. Well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the present invention.
It is to be understood that in the description of the present invention, "known," "fixed," "given," and "predetermined" generally refer to a value, quantity, parameter, constraint, condition, state, flow, process, implementation, or various combinations thereof that are theoretically variable, but if set in advance, remain unchanged in subsequent uses. The terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified. Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including, but not limited to".
Fig. 1a and 1b show schematic views of the operating state of an operating circuit with an emergency shutdown switch when the emergency stop button is not pressed and when the emergency stop button is pressed, respectively.
As shown in fig. 1a, the circuit system includes an operating circuit 20 and an auxiliary circuit 10, the operating circuit 20 includes a first power supply 21 and an electric motor (or motor) 22, and the auxiliary circuit 10 includes an emergency shutdown switch 11 (EMO switch), a relay 30, and a second power supply 12. It should be noted that a very simple and schematic working circuit 20 and auxiliary circuit 10 are provided here to illustrate the working principle of the EMO switch, and in fact the working circuit 20 refers to various electrical devices equipped with an EMO switch. In fig. 1a, the relay 30 includes a coil 31, an armature 32, and a reaction spring 33, the coil 31 being connected in the auxiliary circuit 10, the armature 32 being connected in the operating circuit 20, the reaction spring 33 connecting the coil 31 and the armature 32; the emergency shutdown switch 11 includes an emergency stop button 111 (EMO button).
Under normal conditions, the EMO switch 11 is turned off, the auxiliary circuit 10 is not turned on, the armature 32 is connected in the operating circuit 20, the motor 22 operates under the power of the first power source 21, and the entire operating circuit 20 is driven to operate, wherein the first power source 21 is a 220V power source, for example. When the EMO button 111 needs to be pressed, as shown in fig. 1b, the emergency stop button 111 is pressed, the emergency shutdown switch 11 is closed, the second power source 12 controls the relay 30 to operate, the coil 31 is energized to pull the armature 32 into the coil 31 and separate from the operating circuit 20, so that the operating circuit 20 is disconnected. Such that sudden de-energization of the operating circuit 20 may result in damage to various electrical components within the operating circuit 20.
The present invention solves this problem by providing a detection circuit, which is specifically described below with reference to the first to fourth embodiments.
Fig. 2a and 2b show schematic diagrams of the operation states of the circuit detecting device according to the first embodiment of the present invention when the emergency stop button is not pressed and when the emergency stop button is pressed, respectively.
As shown in fig. 2a, the circuit detecting device according to the first embodiment of the present invention includes: the auxiliary circuit 100 is composed of an operating circuit 200, an emergency cut-off switch 110 and a relay 300, the relay 300 and the emergency cut-off switch 110 and a second power source 120 which are connected in series, and the operating circuit 200 includes a motor (or motor) 220 and a first power source 210. The operation principle of the operation circuit 200, the auxiliary circuit 100 and the relay 300 is the same as that of fig. 1a and 1b, and thus, the description thereof is omitted.
As shown in fig. 2a, the circuit detection device of the present embodiment further includes, in addition to the above-mentioned circuitry: the detection circuit is connected in a circuit system consisting of the working circuit 200 and the emergency shutdown switch 110, the working circuit 200 is still in a working state after the emergency stop button 111 is pressed down by the detection circuit in a starting state, and the working state of the emergency shutdown switch 110 is judged by the state of the first indicator lamp 140 in the detection circuit. Specifically, the detection circuit includes an indication branch including the first indicator lamp 140 and a detection branch including the control switch 130 connected in series with the coil 310 of the relay 300 in parallel, and the control switch 130 controls the activation state of the detection circuit and the operation state of the operation circuit. That is, the control switch 130 is connected in series with the coil 310 to form a detection branch, and the first indicator lamp 140 is connected in parallel to both sides of the coil 310 and the control switch 130 to form an indication branch. In the case where the operating circuit 200 is normally operated, the EMO switch 110 is turned off, the auxiliary circuit 100 is not operated, and the control switch 130 is kept in the normally closed state, so that the first indicator lamp 140 is in the normally off state.
As shown in fig. 2b, the armature 320 is connected in the working circuit 200, when the emergency shutdown switch 110 needs to be detected, the control switch 130 is firstly turned off to enable the detection circuit to be in an activated state, and then the emergency shutdown button 111 is pressed to enable the emergency shutdown switch 110 to be turned on, at this time, if the EMO switch 110 is in a normal function, the second power source 120 enables the first indicator lamp 140 to be turned on, and because the control switch 130 is turned off, the relay 300 cannot pull the armature 320 in, the armature 320 is continuously connected in the working circuit 200, and the working circuit 200 keeps working normally. If the EMO switch 110 fails, the EMO switch 110 cannot be closed, the first indicator lamp 140 is still turned off, and the operating circuit 200 operates normally. That is, after the control switch 130 is turned off to make the detection circuit in the start state and the emergency stop button 111 is pressed, if the first indicator lamp 140 is turned on, the emergency shutdown switch 110 normally operates; if the first indicator light 140 is extinguished, the emergency shutdown switch 110 is malfunctioning.
After the EMO switch 110 is detected to be in a normal function, in the actual use process, when the emergency stop button 111 needs to be pressed to cut off the working circuit 200, the emergency stop button 111 is pressed to close the emergency cut-off switch 110, the control switch 130 is kept in a normally closed state, and the armature 320 is separated from the working circuit 200 by the relay 300 under the control of the second power supply 120 to cut off the working circuit 200. The normal operation of the original circuit system can not be influenced even if the detection circuit is added.
The embodiment of the utility model provides a, through setting up detection circuitry, when detecting whether EMO switch is out of order, even press the scram button, because detection circuitry is under the starting condition, so detection circuitry makes the working circuit continue to keep operating condition, can not influence the electric part in the working circuit, can not cause the damage to electric part, can judge whether EMO switch can normally work through the bright going out of first pilot lamp simultaneously again, accomplish the testing process, whole circuit structure is simple, the testing process is quick and efficient, the normal work of each part in the working circuit has been protected again simultaneously; after the detection is finished, the working state of the working circuit can be controlled by the EMO switch, and the detection circuit cannot influence the original circuit system.
The first embodiment does not detect whether the relay 300 can normally operate, and therefore the following second embodiment is given.
Fig. 3a and 3b show schematic diagrams of an operating state of a circuit detection device according to a second embodiment of the present invention when an emergency stop button is not pressed and when the emergency stop button is pressed.
As shown in fig. 3a, the arrangement of the auxiliary circuit 100, the working circuit 200 and the devices thereon, and the arrangement of the relay 300 are the same as those of the first embodiment, and are not described herein again. The difference between the present embodiment and the first embodiment is that the detection circuit, the detection circuit of the present embodiment still includes an indication branch and a detection branch connected in parallel, the detection circuit includes a first indicator light 230, a second indicator light 240 and a control switch 250, wherein the control switch 250 and the second indicator light 240 are connected in series to form the detection branch, the operating state of the operating circuit 200 is indicated by the state of the second indicator light 240, and the starting state of the detection circuit and the operating state of the operating circuit 200 are controlled by the control switch 240. The armature 320 and the first indicator light 230 are connected in series to form an indicator branch.
In the case where the operating circuit 200 is normally operated, the EMO switch 110 is turned off, the auxiliary circuit 100 is not operated, the first indicator light 230 is turned on, and the control switch 250 is kept in the normally open state, so that the second indicator light 240 is in the normally off state.
As shown in fig. 3b, when the EMO switch 110 needs to be detected, the control switch 250 is closed, the second indicator light 240 is turned on, the emergency stop button 111 is pressed to close the EMO switch 110, at this time, if the auxiliary circuit 100 and the working circuit 200 can work normally, the second power supply 120 energizes the coil 310 of the relay 300 to separate the armature 320 from the working circuit 200, the working circuit 200 continues to maintain the working state due to the existence of the detection branch, and at this time, the first indicator light 230 is turned off. If the EMO switch 110 fails or the relay 300 fails, the auxiliary circuit 100 does not operate although the emergency stop button 111 is pressed, so that the first indicator lamp 230 is always in a normally on state. That is, after the control switch 250 is closed to enable the detection circuit to be in the starting state and the emergency stop button 111 is pressed, if the second indicator light 240 is turned on and the first indicator light 230 is turned off, the auxiliary circuit 100 normally works; the auxiliary circuit 100 fails if the second indicator light 240 is illuminated and the first indicator light 230 is illuminated. In this embodiment and the first embodiment, both the first indicator light and the second indicator light may be LED lights, and both the control switches may be single-switch switches or push-button switches.
Of course, as in the first embodiment, if it is necessary to turn off the operating circuit 200 using the EMO switch 110 in actual use, the control switch 250 is kept in the on state according to fig. 3a, and the detection circuit is in the off state, and at this time, the emergency stop button 111 is pressed, and the operating circuit 200 is turned off.
Therefore, the circuit detection device of the embodiment is provided with the detection circuit, so that the working circuit can be kept in a working state even if the emergency stop button is pressed down in a starting state of the detection circuit, and meanwhile, whether the auxiliary circuit has a fault is judged through the on and off of the first indicator lamp, whether the function of the EMO switch can be normally used is judged, the working circuit and various electrical parts on the working circuit are protected, and the fault detection of the EMO switch and the relay can be rapidly completed; when the detection circuit is in a non-starting state, the EMO switch can control the working circuit to be disconnected in an emergency state, so that the personal safety is protected.
Fig. 4a and 4b are schematic views showing the operation states of the entire operating circuit when the emergency shutdown switch is directly connected to the operating circuit, when the emergency stop button is not pressed, and when the emergency stop button is pressed, respectively.
As shown in fig. 4a, the circuit system is composed of an emergency shutdown switch 50 and an operating circuit 40, and there is no auxiliary circuit, and a first power source 41 and a motor (or motor) 42 are provided on the operating circuit 40. Portions of the circuitry are not described in detail. When the scram button 51 of the EMO switch 50 is not pressed, the emergency cut-off switch 50 is closed, and the operating circuit 40 operates normally.
As shown in fig. 4b, when the emergency stop button 51 is pressed, the emergency cut-off switch 50 is turned off, the operating circuit 40 is opened, and the detection of the EMO switch 50 is completed, which may damage the devices inside the operating circuit 40.
The normal work of each device in for the protection work circuit realizes the detection of EMO switch simultaneously, the utility model discloses the circuit detection device of third embodiment and fourth embodiment is still provided.
Fig. 5a and 5b show schematic diagrams of an operating state of a circuit detection device according to a third embodiment of the present invention when the emergency stop button is not pressed and when the emergency stop button is pressed, respectively.
As shown in fig. 5a, the circuit detecting device according to the third embodiment of the present invention includes: an operating circuit 400, an emergency cut-off switch (EMO switch) 500, and a detection circuit connected in a circuit system composed of the operating circuit 400 and the emergency cut-off switch 500, the function of the detection circuit being identical to the first and second embodiments. Specifically, the emergency shutdown switch 500 is connected in series with the first indicator lamp 510 to form an indication branch, the control switch 440 and the second indicator lamp 430 form a detection branch, and the detection branch is connected in parallel with the indication branch. In fig. 5a, under normal conditions, the control switch 440 is kept in a normally open state, the second indicator light 430 is normally turned off, the EMO switch 500 is kept in a closed state, the operating circuit 400 is normally operated, and the first indicator light 510 is turned on.
As shown in fig. 5b, when the EMO switch 500 needs to be detected, the control switch 440 is closed to energize the detection branch, the second indicator light 430 is turned on, and the emergency stop button (EMO button) 511 is pressed, at this time, if the EMO switch 500 functions normally, the EMO switch 500 is turned off, the working circuit 400 continues to maintain the working state due to the presence of the detection branch, and the first indicator light 510 is turned off; if the EMO switch 500 malfunctions, the EMO switch 500 is not turned off even if the emergency stop button 511 is pressed, and the second indicator lamp 510 remains on. That is, after the control switch 440 is closed to enable the detection circuit to be in the starting state and the emergency stop button 511 is pressed, if the second indicator light 430 is turned on and the first indicator light 510 is turned off, the emergency shutdown switch 500 works normally; if the second indicator light 430 is on and the first indicator light 510 is on, the emergency shutdown switch 500 fails.
After the detection is completed, if the EMO switch 500 functions normally, the control switch 440 is normally open, and when the EMO switch 500 is needed to disconnect the operating circuit 400, the emergency stop button 511 is pressed. In this embodiment, the control switch 440 may be a single-pole single-throw switch, a push-button switch, a touch switch, or the like.
Fig. 6a and 6b show schematic diagrams of an operating state of a circuit detection device according to a fourth embodiment of the present invention when the emergency stop button is not pressed and when the emergency stop button is pressed.
The circuit structure of this embodiment is the same as that of the third embodiment, and is not described again. The only difference is that in this embodiment, the control switch 600 is an emergency disconnect switch (EMO switch), and the control switch 600 is controlled to be turned off by pressing the emergency stop button 611.
As shown in fig. 6a, the first EMO switch 500 and the first indicator lamp 510 are connected in series as an indication branch, and the second EMO switch 600 and the second indicator lamp 430 are connected in series as a detection branch. The second EMO switch 600 maintains a normally open state and the second indicator light 430 is normally turned off.
As shown in fig. 6b, when the first EMO switch 500 is detected, the second EMO switch 600 is closed, the second indicator light 430 is turned on, the emergency stop button 511 is pressed, and the first indicator light 510 is turned off.
In the above embodiments, the indicator light may be an LED light, the first power supply is a 220V power supply, and the second power supply is a 12V power supply, so that the relay realizes a weak current control function and a strong current control function. In addition, for the above embodiments, a resistor may be connected in series beside the first indicator light and the second indicator light, so as to prevent the indicator light from being suddenly turned on and damaging the bulb, which may result in inaccurate judgment.
To sum up, the utility model provides a circuit detection device adds detection circuitry in the circuit system that comprises operating circuit and emergency shutdown switch originally, and detection circuitry is under the start-up state, even press emergency stop button on the emergency shutdown switch and also can make the operating circuit that originally will break off still keep operating condition, can also instruct whether the emergency shutdown switch breaks down through the first pilot lamp in the detection circuitry, with accomplish emergency shutdown switch's detection fast under the prerequisite of not breaking off operating circuit, can keep operating circuit job stabilization nature, avoid because the electric spare part that the operating circuit breaks off suddenly and causes damages the unable prosthetic problem of board even, can also the short-term test out whether there is the trouble in the circuit at emergency shutdown switch place, accomplish the detection on time, holistic circuit structure is simple, the cost is extremely low, and it is high-efficient convenient to detect. In the present invention, the above-mentioned embodiment is only for realizing the embodiment of the present invention, however, the embodiment of the present invention is not limited to this.
Finally, it should be noted that: in accordance with the embodiments of the present invention as set forth above, these embodiments are not exhaustive and do not limit the invention to the precise embodiments described. Obviously, many modifications and variations are possible in light of the above teaching. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the protection scope of the present invention. The embodiment was chosen and described in order to best explain the principles of the invention and its practical application, to thereby enable others skilled in the art to best utilize the invention and its practical application in conjunction with the modifications made to the invention.
Claims (10)
1. A circuit testing apparatus, comprising:
an operating circuit including a first power source and a motor;
the emergency circuit breaker is connected with the working circuit and comprises an emergency stop button, and the emergency circuit breaker is controlled to be disconnected by pressing the emergency stop button; and
the detection circuit is connected in a circuit system consisting of the working circuit and the emergency circuit breaker, the working circuit is still kept in a working state after the emergency stop button is pressed down by the detection circuit in a starting state, and the working state of the emergency circuit breaker is judged according to the state of a first indicator lamp in the detection circuit.
2. The circuit testing device of claim 1, wherein said testing circuit comprises an indicating branch and a testing branch connected in parallel, said indicating branch comprising said first indicator light, and said testing branch comprising a control switch for controlling an activation state of said testing circuit and an operating state of said operating circuit.
3. The circuit testing device of claim 2, wherein said testing branch comprises a control switch and a second indicator light connected in series, and said testing branch is connected to said working circuit, and the working state of said working circuit is indicated by the state of said second indicator light.
4. The circuit detecting device according to claim 3, wherein the emergency cut-off switch is connected in the working circuit, and is connected in series with the first indicator light to form the indicating branch, and the emergency stop button is pressed to open the emergency cut-off switch, so that the working circuit is opened.
5. The circuit detection device according to claim 4, wherein after the control switch is closed to enable the detection circuit to be in an activated state and the emergency stop button is pressed, if the second indicator light is turned on and the first indicator light is turned off, the emergency shutdown switch is operated normally; and if the second indicator light is turned on and the first indicator light is turned on, the emergency circuit breaker is in fault.
6. The circuit detection device of claim 5, wherein the control switch comprises a single pole single throw switch and an emergency disconnect switch.
7. The circuit detection device of claim 2, further comprising:
the relay comprises a coil, an armature and a reaction spring, wherein the relay, the emergency circuit breaker and a second power supply are connected in series to form an auxiliary circuit, the armature is connected in the working circuit, the emergency stop button is pressed to close the emergency circuit breaker, the second power supply controls the reaction spring to separate the armature from the working circuit and break the working circuit.
8. The circuit detection device according to claim 7, wherein the coil and the control switch are connected in series to form the detection branch, and after the control switch is turned off to enable the detection circuit to be in an activated state and the emergency stop button is pressed, the emergency stop switch operates normally if the first indicator light is turned on; and if the first indicator lamp is turned off, the emergency shutdown switch fails.
9. The circuit detection device according to claim 7, wherein the armature and the first indicator light are connected in series to form the indication branch, the detection branch further comprises a second indicator light connected in series with the control switch, and after the control switch is closed to enable the detection circuit to be in an activated state and the emergency stop button is pressed, if the second indicator light is turned on and the first indicator light is turned off, the auxiliary circuit works normally; and if the second indicator light is turned on and the first indicator light is turned on, the auxiliary circuit fails.
10. The circuit testing device of claim 3, wherein said first indicator light and said second indicator light are both LED lights.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222904448.9U CN218675222U (en) | 2022-11-01 | 2022-11-01 | Circuit detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222904448.9U CN218675222U (en) | 2022-11-01 | 2022-11-01 | Circuit detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218675222U true CN218675222U (en) | 2023-03-21 |
Family
ID=85568826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222904448.9U Active CN218675222U (en) | 2022-11-01 | 2022-11-01 | Circuit detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218675222U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118034454A (en) * | 2024-04-11 | 2024-05-14 | 中科芯微智能装备(沈阳)有限公司 | Emergency button control module and equipment with shielding function |
-
2022
- 2022-11-01 CN CN202222904448.9U patent/CN218675222U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118034454A (en) * | 2024-04-11 | 2024-05-14 | 中科芯微智能装备(沈阳)有限公司 | Emergency button control module and equipment with shielding function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN218675222U (en) | Circuit detection device | |
| KR20130078393A (en) | Coil status detecting method and electronic motor protection relay using the same | |
| CN111446130A (en) | Monitoring circuit of circuit breaker protection tripping circuit | |
| WO2008107753B1 (en) | Automated anti-explosion system and method for integrated-drive-generator | |
| CN102640340A (en) | Method for operating a fuel cell system | |
| CN205303334U (en) | Self -diagnostic function contactor | |
| CN219018691U (en) | Laser and power supply device thereof | |
| US4980622A (en) | Actuator two-fault tolerance apparatus | |
| KR100377550B1 (en) | Solenoid valve test device | |
| CN219322070U (en) | Comprehensive protection monitoring circuit for motor | |
| KR20040038191A (en) | Reclosing Relay Tester | |
| JP2002252923A (en) | Output branching device | |
| CN114148543B (en) | Detection method of special maintenance detector for aircraft pneumatic actuator | |
| CN220064286U (en) | Isolation disconnecting link clutch monitoring circuit | |
| KR100335190B1 (en) | Control relay for certifying disorder | |
| US20220404393A1 (en) | Testing Device for a Medium Voltage Starter | |
| CN114738253B (en) | Rail vehicle air compressor start control circuit and method | |
| CN212433340U (en) | Detection apparatus for operating mechanism | |
| KR100432033B1 (en) | a device and the method for sources of electricity controlling in vehicle | |
| JP2503048B2 (en) | Power supply device error display method | |
| KR890000824Y1 (en) | Security device of high-voltage circuit | |
| KR0124345Y1 (en) | A circuit for using acb sequence in common | |
| US4138631A (en) | Drop wire circuit tester | |
| KR200391211Y1 (en) | AI Lantern Detector | |
| CN115167355A (en) | Lamp detection control circuit and method based on multiple monitoring platforms |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |