Fault detection device
By designing a series-parallel fault detection device, rapid and accurate location of faults in the sensors and interlock switches of the ZB45 packaging machine was achieved, solving the problem of cumbersome fault detection in the existing technology and improving the efficiency of fault diagnosis.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JILIN TOBACCO IND CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-04-10
AI Technical Summary
In the existing technology, the fault detection process of the sensors and interlock switches of the ZB45 packaging machine is cumbersome and cannot quickly and accurately locate the fault point, resulting in excessively long maintenance time.
A fault detection device was designed, which consists of a first circuit and a second unit connected in series, an auxiliary circuit connected in parallel, and a sensor, a controller, and a display. The controller and display are used to realize the individual detection and accurate positioning of the sensor and interlocking switch.
It enables rapid and accurate location of sensor and interlock switch faults, significantly improving fault diagnosis efficiency and reducing maintenance time.
Smart Images
Figure CN224108846U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of device detection, in particular to a fault detection device. BACKGROUND
[0002] In various scenarios, there are many detections for various components, when the components have faults, the faults need to be detected in time so as to be repaired in time. For example, a ZB45 packaging machine applied in a cigarette factory, a direct current 24V control circuit is divided into a main machine and an auxiliary machine two ways, the main machine circuit is connected with 44 sensors in series and is connected with an air switch to realize on-off, the auxiliary machine circuit is connected with 57 sensors in series and is connected with another air switch to realize on-off, when any one sensor has a short circuit fault, the load current will rapidly increase to cause the air switch in the corresponding circuit to trip to cut off the 24V+ power supply of the circuit, at this time, all the sensors in the circuit are powered off, the fault alarm information and the air switch tripping information of all the sensors in the circuit are displayed on the device fault display, the information amount is large and cannot be clearly pointed to the specific fault point, when the maintenance personnel check the fault, the air switch tripping is first found to determine that the shutdown cause is the direct current 24V short circuit fault, then each sensor of the tripping circuit is checked one by one to determine the fault point, the process is relatively cumbersome, and the single fault finding time is generally not less than 60 minutes. CONTENT OF THE UTILITY MODEL
[0003] The purpose of the present application is to provide a fault detection device, which can conveniently and quickly realize fault detection of device sensors, thereby effectively solving the problems in the prior art.
[0004] Therefore, the embodiment of the present application provides a fault detection device, which comprises:
[0005] A first circuit comprising a first unit and a second unit connected in series, wherein the output end of the first unit is connected with the input end of the second unit, and the second unit comprises a plurality of first auxiliary circuits connected in parallel, wherein the input end of each first auxiliary circuit is connected with the output end of the first unit;
[0006] A first switch arranged in the first unit and used for over-current protection of the first circuit;
[0007] A sensor element arranged in the first auxiliary circuit;
[0008] A controller, wherein the output end of each first auxiliary circuit is connected with the controller;
[0009] A display electrically connected with the controller.
[0010] In some possible implementation manners, each first auxiliary circuit is provided with a fuse.
[0011] In some possible implementation manners, the number of the first circuits is multiple.
[0012] In some possible implementation manners, the first power supply end is further included, and the input end of the first unit is connected with the first power supply end.
[0013] In some possible implementation manners, the second circuit is further included, the second circuit is provided with a second switch and a relay in series, and the input end of the second circuit is connected with the first power supply end.
[0014] In some possible implementation manners, the second switch and the controller are connected in parallel.
[0015] In some possible implementation manners, the number of the second switches is multiple.
[0016] In some possible implementation manners, the second switches are connected in series.
[0017] In some possible implementation manners, the second switches are respectively provided with power connection lines at two ends to be electrically connected with the controller.
[0018] In some possible implementation manners, the sound-light alarm device is further included, and the sound-light alarm device is electrically connected with the controller.
[0019] According to the fault detection device provided in the embodiment of the present application, the first circuit includes the first unit and the second unit, the first unit and the second unit are connected in series, the second unit is provided with multiple first auxiliary circuits in parallel, the sensor element is arranged on the first auxiliary circuit, the first switch is arranged on the first unit, the first switch is an air switch for short-circuit protection, the controller and the display are further arranged, and the states of the sensor elements are displayed, so that the respective and individual detection of the sensor elements is realized, when the short-circuit fault of the corresponding sensor element occurs, the sensor element where the fault occurs can be accurately located, and the fault checking efficiency is obviously improved. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is an electrical schematic diagram of the device sensor and interlocking switch in the prior art;
[0021] Figure 2 It is a structural schematic diagram of the fault detection device provided in the embodiment of the present application. DETAILED DESCRIPTION
[0022] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.
[0023] The embodiment of the application provides a fault detection device, which is applied to fault detection of sensors 1-2, interlocking switches 1-3 and the like, for example, in a ZB45 packaging machine, a direct current 24V control circuit is divided into two paths of a main machine and an auxiliary machine, a main machine circuit is connected in series with 44 sensors 1-2 and realizes on-off through an air switch 1-1, an auxiliary machine circuit is connected in series with 57 sensors 1-2 and realizes on-off through another air switch 1-1, the sensors 1-2 are mostly photoelectric sensors, displacement sensors and the like required on the ZB45 packaging machine, when short circuit fault occurs in any one sensor 1-2, the air switch 1-1 in the corresponding circuit is automatically tripped to cut off 24V power supply of the circuit due to rapid increase of load current, at this time, all the sensors 1-2 in the circuit are powered off, the fault display 902 of the equipment displays fault alarm information and air switch 1-1 tripping information of all the sensors 1-2 in the circuit, the information amount is large and cannot be clearly pointed to a specific fault point, when a maintenance personnel checks the fault, the air switch 1-1 is first tripped to determine that the shutdown cause is direct current 24V short circuit fault, then each sensor 1-2 in the tripped circuit is checked one by one to determine the fault point, the process is relatively complicated, and the single fault finding time is generally not less than 60 minutes, and the specific detection method is as follows: the maintenance personnel arrives at the equipment site, first analyzes a large amount of alarm information, judges that the shutdown cause is direct current 24V circuit short circuit, opens an electric cabinet to observe the state of the two air switches 1-1 to determine whether the fault occurs in the main machine circuit or the auxiliary machine circuit, then removes a cabinet door on the right side of the electric cabinet, finds a direct current 24V control circuit load bus bar 1-5 on a switch board, removes one load line from the bus bar 1-5, resets the direct current 24V air switch 1-1 which has been tripped protection, at this time, if the load is not the one which has occurred the fault, the air switch 1-1 will be tripped again, the remaining load lines are removed in the mode of one at a time, and the process is repeated, until the air switch 1-1 is not tripped, the fault load line is found, then the sensor 1-2 on the fault load line is the fault sensor 1-2, during the process, after the direct current 24V air switch 1-1 is tripped each time, 1-2 minutes or so are needed to wait for the reset of the overheat protection mechanism before the switch is closed again, the average single fault finding time is more than 60 minutes, which is time-consuming and laborious, in addition, a plurality of interlocking switches 1-3 are also arranged on the ZB45 packaging machine, for example, for the cabinet door of the equipment, the interlocking switch 1-3 is triggered when the cabinet door is opened, and then a corresponding relay 4021-4 is triggered to cut off the power supply and stop to realize cabinet door misopening protection and prevent accidents, the interlocking switch is also divided into two parts of a main machine and an auxiliary machine, a main machine circuit is connected in series with 13 interlocking switches 1-3 to realize 24V power supply on-off of one relay 4021-4, and an auxiliary machine circuit is connected in series with 8 interlocking switches 1-3 to realize 24V power supply on-off of another relay 4021-4, when any one interlocking switch 1-3 occurs fault, the corresponding relay 4021-4 is powered off, and the fault display 902 only sends alarm information "safety interlocking fault",It cannot be pointed out which interlocking switch fails, and the maintenance personnel first opens the interlocking switch one by one and measures with a multimeter until the fault point is found. The single fault finding time is generally not less than 30 minutes. The specific method for detecting the interlocking switch 1-3 fault is: find the interlocking switch 1-3 on the equipment, open the cover plate and measure whether there is control voltage above and below the interlocking switch 1-3. There are three cases, one is that the upper contact of the switch has electricity and the lower contact has no electricity, which proves that the fault point is this switch, two is that the upper and lower contacts have electricity, which proves that the interlocking switch 1-3 behind the interlocking switch 1-3 in the series circuit fails, three is that the upper and lower contacts have no electricity, which proves that the interlocking switch 1-3 in front of the interlocking switch 1-3 in the series circuit fails. Repeat the inspection until the fault point is found. The average single fault finding time is more than 30 minutes. The sensor 1-2 and the interlocking switch 1-3 of the ZB45 packaging machine are shown in the electrical schematic diagram, Figure 1 In the diagram, only the number of the sensor 1-2 and the interlocking switch 1-3 is shown, which does not represent the actual number of the sensor 1-2 and the interlocking switch 1-3. It should be noted that the same as the actual demand, the embodiment of the present application realizes short circuit fault detection for the sensor 1-2 and open circuit fault detection for the interlocking switch 1-3.
[0024] In order to improve the fault detection convenience of the sensor in the ZB45 packaging machine, as shown in Figure 2As shown, the embodiment of the present application provides a fault detection device, which comprises a first circuit 100, the first circuit 100 comprises a first unit 101 and a second unit 102, the first unit 101 and the second unit 102 are connected in series with each other, the first unit 101 has an input end and an output end, the second unit 102 has an input end and an output end, here, the input end refers to one end connected with the positive pole of the power supply, and the output end refers to one end connected with the negative pole of the power supply, the first unit 101 and the second unit 102 are both circuit loop structures, the output end of the first unit 101 is connected with the input end of the second unit 102, preferably, the second unit 102 comprises a plurality of first auxiliary circuits 1021, the plurality of first auxiliary circuits 1021 are connected in parallel with each other, the first auxiliary circuit 1021 also has an input end and an output end, the input end of each first auxiliary circuit 1021 is connected with the output end of the first unit 101, and the device further comprises a controller 901, the output end of each first auxiliary circuit 1021 is connected with a different port on the controller 901, so that each first auxiliary circuit 1021 forms a parallel connection, a first switch 301 is arranged on the first unit 101, the first switch 301 is connected in series with the first unit 101, a sensor element 302 is arranged on the first auxiliary circuit 1021, the sensor element 302 is connected in series with the first auxiliary circuit 1021, and one sensor element 302 is connected in series with each first auxiliary circuit 1021, and the sensor element 302 can be a photoelectric sensor, a displacement sensor or other sensor devices, and the device further comprises a display 902, the display 902 is electrically connected with the controller 901.
[0025] In the embodiment, each sensor element 302 forms a parallel arrangement mode without interfering with each other, each sensor element 302 is numbered and positioned by the controller 901, and is displayed by the display 902, when a short circuit fault occurs in a certain sensor element 302, the first auxiliary circuit 1021 where the sensor element 302 is located is short-circuited, so that the current of the corresponding first auxiliary circuit 1021 increases, the controller 901 can detect the increase of the current of the first auxiliary circuit 1021, which indicates that the sensor element 302 on the first auxiliary circuit 1021 has a fault, and the display 902 displays the information, the current of the first unit 101 also increases, the first switch 301 is used for overcurrent protection of the first circuit, the first switch 301 is an air switch, the increase of the current causes the air switch to be disconnected, the controller 901 displays the information that the corresponding sensor element 302 on the first auxiliary circuit 1021 has a fault according to the signal of the increase of the current of the corresponding first auxiliary circuit 1021, in this way, the sensor element 302 where the fault occurs can be accurately and quickly positioned, and the convenience of troubleshooting is greatly improved.
[0026] Preferably, a fuse 303 is arranged on the first auxiliary circuit 1021, and the fuse 303 is in series on the first auxiliary circuit 1021, one fuse 303 is arranged on each first auxiliary circuit 1021, when the sensor element 302 is in failure, the current is increased, the corresponding fuse 303 is disconnected, the circuit safety is further improved, and after the fuse 303 is disconnected, the state of the fuse 303 can be observed to determine which sensor element 302 in the first auxiliary circuit 1021 is in short circuit failure, the failure detection mode is increased, the fuse current of the fuse 303 is 2-10A, the first switch 301 is an air switch, and the tripping current of the first switch 301 is 10A.
[0027] Preferably, the number of the first circuits 100 is multiple, for example, in the application of the ZB45 packaging machine, the number of the first circuits 100 can be two, one of which is used for the main machine of the ZB45 packaging machine, and the other is used for the auxiliary machine of the ZB45 packaging machine.
[0028] The fault detection device also includes a first power supply end 501, the input end of the first unit 101 is connected with the first power supply end 501, and in the embodiment, a second power supply end 502 can also be arranged, the voltage of the first power supply end 501 is 24V+, and the voltage of the second power supply end 502 is 24V-, so as to realize power supply for the sensor element 302, and in an embodiment, the fault detection device also includes a second loop 200, the second loop 200 is provided with a second switch 401 and a relay 402 in series, the input end of the second loop 200 is connected with the first power supply end 501, the second switch 401 and the relay 402 are connected in series, when the second switch 401 is disconnected, the relay 402 contact is disconnected, thereby disconnecting the power supply of the equipment, realizing shutdown, the second switch 401 can be a interlocking switch arranged on the door of the equipment cabinet, when the door of the equipment cabinet is opened by mistake, the equipment can be stopped to prevent accidents, and the actual needs are matched, the embodiment realizes the disconnection fault detection of the second switch 401, the number of the second switch 401 arranged on the second loop 200 is multiple, each second switch 401 is connected in series, the input end of the second loop 200 is connected with the first power supply end 501, the output end of the second loop 200 is connected with the second power supply end 502, realizing power supply for the second loop 200, and each second switch 401 is connected in parallel with the controller 901, preferably, one power connection line 403 is arranged at two ends of each second switch 401, one end of the power connection line 403 is connected with one of the two ends of the second switch 401, the other end of the power connection line 403 is connected with the port of the controller 901, each power connection line 403 is connected with different ports of the controller 901, in this way, each second switch 401 is connected in parallel with the controller 901, in this way, for two adjacent second switches 401, one power connection line 403 can be shared, when a certain second switch 401 appears a disconnection fault, the voltage change of the corresponding second switch 401 can be recognized by the controller 901, and the display 902 is used for display, in this way, the positioning detection of the second switch 401 with a fault can be accurately and quickly realized, and the fault detection efficiency is obviously improved, the method for judging whether the second switch 401 appears a fault according to the voltage change of the second switch 401 is the same as the prior art, that is, the upper contact of the second switch 401 has electricity, and the lower contact has no electricity, which proves that the fault point is the second switch 401, the two ends of the second switch 401 refer to the upper contact and the lower contact of the second switch 401, that is, the upstream and downstream ends of the second switch 401 along the current flowing direction of the second loop 200.
[0029] The number of the second loop 200 is multiple, in some embodiments, for example, the application on the ZB45 packaging machine, the number of the second loop 200 is two, one of the second loop 200 is applied to the main machine of the ZB45 packaging machine, and the other second loop 200 is applied to the auxiliary machine of the ZB45 packaging machine.
[0030] In some embodiments, the display 902 can be a touch display screen, the touch display screen and the controller 901 are electrically connected, the controller 901 and the main control box of the device are electrically connected, and the control of the control switch and the like in the main control box can be realized through the controller 901 to realize the shutdown operation of the device. The signal input area can be set on the touch display screen, and the shutdown signal can be sent to the controller 901 by clicking the signal input area. The controller 901 receives and identifies the shutdown signal and then sends a control signal to the main control box of the device. After the control box receives the control signal, the device is controlled to stop. The touch display screen is also provided with a display area, and the number of each sensor element 302, the current state of each first auxiliary circuit 1021 and the voltage state of each second switch 401 and the like can be displayed through the display area.
[0031] More preferably, the fault detection device further comprises an audible and light alarm device 903, and the audible and light alarm device 903 and the controller 901 are electrically connected. When it is detected that the sensor element 302 or the second switch 401 fails, the audible and light alarm device 903 alarms by sounding and lighting to remind the relevant operating personnel.
[0032] It should be noted that the "one embodiment", "embodiment", "exemplary embodiment", "some embodiments" and the like mentioned in the specification mean that the described embodiment can include a specific feature, structure or characteristic, but not necessarily every embodiment includes the specific feature, structure or characteristic. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when a specific feature, structure or characteristic is described in connection with an embodiment, it is within the knowledge of those skilled in the art to realize such feature, structure or characteristic in connection with other embodiments described explicitly or implicitly.
[0033] It should be readily understood that "on", "above" and "over" in the present disclosure should be interpreted in the broadest way, so that "on" not only means "directly on", but also includes the meaning of "on" with intermediate features or layers therebetween, and "above" or "over" not only includes the meaning of "above" or "over", but also can include the meaning of "above" or "over" without intermediate features or layers therebetween (i.e., directly on).
[0034] Moreover, spatially relative terms, such as "beneath", "below", "lower", "above", "upper", and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
[0035] Note that, in the description, relative terms such as "first" and "second", and the like, can be used solely to distinguish one from another entity or action without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.
[0036] Finally, it should be noted that the above-described embodiments are merely intended for describing and illustrating, but not limiting, the technical solutions of the present application; even though the present application has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the above embodiments, or equivalently replace some or all of the technical features thereof; and such modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A fault detection device, characterized in that, The utility model relates to a kind of power supply circuit, comprising: First loop, including first unit and second unit mutually in series, the output of the first unit and the input of the second unit are connected, and the second unit includes a plurality of parallel first auxiliary loop, the input of each first auxiliary loop and the output of first unit are connected; First switch, set in the first unit, for overcurrent protection the first loop; Sensor element, set in the first auxiliary loop; Controller, the output of each first auxiliary loop is connected to the controller; Display, and the controller is electrically connected.
2. A fault detection device according to claim 1, characterised in that: Each first auxiliary loop is provided with a fuse.
3. A fault detection device according to claim 1, characterised in that: The number of the first loop is multiple.
4. The fault detection apparatus of claim 1, wherein: It also includes a first power supply end, and the input of the first unit is connected to the first power supply end.
5. A fault detection device according to claim 4, characterised in that: It also includes a second loop, which is provided with a second switch and a relay in series, and the input of the second loop is connected to the first power supply end.
6. A fault detection device according to claim 5, characterised in that: The second switch and the controller are connected in parallel.
7. A fault detection device according to claim 6, characterised in that: The number of the second switch is multiple.
8. A fault detection device according to claim 7, characterised in that: Each second switch is connected in series.
9. A fault detection device according to claim 8, characterised in that: Two ends of each second switch are respectively provided with a power connection line to be electrically connected to the controller.
10. The fault detection apparatus of claim 1, wherein: It also includes an audible and visual alarm device, which is electrically connected to the controller.