CN219142960U - Insulation detection system - Google Patents
Insulation detection system Download PDFInfo
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- CN219142960U CN219142960U CN202223560439.9U CN202223560439U CN219142960U CN 219142960 U CN219142960 U CN 219142960U CN 202223560439 U CN202223560439 U CN 202223560439U CN 219142960 U CN219142960 U CN 219142960U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
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- Y04S10/40—Display of information, e.g. of data or controls
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Abstract
The utility model relates to an insulation detection system in the technical field of magnetic suspension bearings, which comprises: the input end of the power supply module is connected with an external power supply input and is used for converting the external power supply voltage into a voltage suitable for the detection system; and the power input end of the insulation detection module is connected with the output end of the power module. The insulation detection module performs voltage data sampling on the magnetic bearing winding, performs filtering and amplifying treatment on the small voltage signal through the internal circuit, obtains insulation resistance information through further data processing, and then transmits the insulation resistance information to the main control board, the main control board further processes the data and then transmits the data to the touch screen, and the real-time insulation resistance information and state information are read on the touch screen, so that insulation resistance detection on the magnetic bearing winding is realized.
Description
Technical Field
The utility model relates to the technical field of magnetic suspension bearings, in particular to an insulation detection system.
Background
As is well known, the magnetic suspension bearing utilizes an electromagnet to generate controllable electromagnetic force to axially control a rotor so as to realize axial positioning. The insulation resistance value of the magnetic bearing winding and the shell grounding point can well judge the insulation state of the system, the magnetic bearing can normally work under good insulation conditions, when the insulation resistance value of equipment is very small, the insulation performance is reduced, the equipment can generate an electric leakage phenomenon, a magnetic field generated in the system cannot be stable, the system can generate a fluctuation or violent oscillation phenomenon, and the work needs to be stopped immediately so as to avoid safety accidents.
In the prior art, the insulation detection system usually detects the insulation resistance value of the bus voltage of the equipment and the grounding point of the shell, but the voltage signals at two ends of the magnetic bearing winding are very weak in the working process, generally mV (millivolt), and direct treatment cannot be carried out; when the insulation detection system is used for detection, accurate bus voltage is difficult to collect for subsequent resistance calculation.
Thus we provide an insulation detection system suitable for use with magnetic bearing windings.
Disclosure of Invention
The present utility model has been made to solve the above-mentioned problems, and an object of the present utility model is to provide an insulation detection system.
The utility model realizes the above purpose through the following technical scheme:
an insulation detection system, comprising:
the input end of the power supply module is connected with an external power supply input and is used for converting the external power supply voltage into a voltage suitable for the detection system;
the insulation detection module is connected with the power supply input end and the power supply output end, and is used for collecting real-time voltage signals at two ends of the magnetic bearing winding and a shell grounding point signal, filtering and amplifying the collected voltage signals, and then processing and treating the voltage signals to obtain insulation resistance information of the positive electrode and the negative electrode of the voltage signals on PE respectively;
the main control board is connected with the power module output end, and the main control board communication input port is connected with the insulation detection module communication output port and is used for processing and refining the insulation resistance information to obtain magnetic bearing winding state information, insulation resistance data and data alarm information;
the touch screen is characterized in that the power input end of the touch screen is connected with the output end of the power module, and the communication input port of the touch screen is connected with the communication output port of the main control board and is used for displaying the state information of the magnetic bearing winding, the insulation resistance value data and the data alarm information.
Preferably, the insulation detection module includes:
the acquisition circuit is connected with the magnetic bearing winding at the data acquisition end, and is used for acquiring and obtaining real-time voltage signals at the two ends of the magnetic bearing winding and a shell grounding point signal (PE), and filtering and amplifying the voltage signals;
the data input port of the data processing unit is connected with the data output port of the acquisition circuit and is used for processing and processing the voltage signals after filtering and amplifying to obtain insulation resistance information of the positive electrode and the negative electrode of the voltage signals on PE respectively.
Preferably, the acquisition circuit includes:
the magnetic bearing winding positive electrode acquisition circuit is connected with the magnetic bearing winding positive electrode end and is used for acquiring and obtaining a real-time voltage signal of the magnetic bearing winding positive electrode end;
the magnetic bearing winding negative electrode acquisition circuit is connected with the magnetic bearing winding negative electrode end and is used for acquiring and obtaining a real-time voltage signal of the magnetic bearing winding negative electrode end;
and the shell grounding point acquisition circuit is connected with the shell of the magnetic bearing winding and is used for acquiring and obtaining a shell grounding point signal (PE).
Preferably, the collecting circuit amplifies the collected voltage signals by 10-100 times.
Preferably, the method further comprises:
and the alarm module is characterized in that a power input end of the alarm module is connected with an output end of the power module, and a communication input port of the alarm module is connected with a communication output port of the main control board and is used for sending an alarm signal for reminding workers.
Preferably, the alarm module includes:
the power input end of the sound alarm unit is connected with the output end of the power module, and the communication input port is connected with the communication output port of the main control board and used for giving out alarm sounds;
and the power input end of the luminous alarm unit is connected with the output end of the power module, and the communication input port is connected with the communication output port of the main control board and is used for emitting alarm light.
Preferably, the communication output port of the main control board is connected with the communication input port of the equipment where the magnetic bearing winding is located.
The beneficial effects are that:
the insulation detection module samples voltage data of the magnetic bearing winding, filters and amplifies a small voltage signal through an internal circuit, obtains insulation resistance information through further data processing, and then transmits the insulation resistance information to the main control board, the main control board further processes the data and then transmits the data to the touch screen, and the real-time insulation resistance information and state information are read on the touch screen, so that insulation resistance detection of the magnetic bearing winding is realized;
due to the arrangement of the alarm module, when the insulation resistance value of the magnetic bearing winding is detected to be smaller than a certain threshold value, the alarm module can send out alarm information, and can remind a worker when the worker is not near the touch screen;
because the communication output port of the main control board is connected with the communication input port of the equipment where the magnetic bearing winding is located, when the insulation resistance value of the magnetic bearing winding is detected to be smaller than a certain threshold value, workers still do not serve as a back, the equipment where the magnetic bearing winding is located is automatically controlled to stop, and the equipment where the magnetic bearing winding is located is prevented from being further damaged.
Additional features and advantages of the utility model will be set forth in the description which follows, or may be learned by practice of the utility model.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the description serve to explain, without limitation, the utility model. In the drawings:
FIG. 1 is a schematic illustration of a first construction of the present utility model;
FIG. 2 is a schematic illustration of a second construction of the present utility model;
FIG. 3 is a schematic view of a third construction of the present utility model;
FIG. 4 is a schematic view of a fourth construction of the present utility model;
FIG. 5 is a schematic diagram of the main part of the positive acquisition circuit of the magnetic bearing winding of the present utility model;
fig. 6 is a schematic diagram of the main part of the negative pole acquisition circuit of the magnetic bearing winding in the present utility model.
The reference numerals are explained as follows:
1. a power module; 2. an insulation detection module; 21. an acquisition circuit; 22. a data processing unit; 3. a main control board; 4. a touch screen; 5. an alarm module; 51. an acoustic alarm unit; 52. a light emitting alarm unit; 6. magnetic bearing windings.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "orientation" or "positional relationship" are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the utility model.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In a first embodiment, as shown in fig. 1, an insulation detection system includes:
the power module 1, the input of power module 1 is connected with external power input, and power module 1 is used for converting external power voltage into the voltage that is applicable to this detecting system.
The insulation detection module 2, the power input end of the insulation detection module 2 is connected with the output end of the power module 1, the insulation detection module 2 is used for collecting real-time voltage signals at two ends of the magnetic bearing winding 6 and a shell grounding point signal PE, filtering and amplifying the collected voltage signals, and then processing and treating the voltage signals to obtain insulation resistance information of positive and negative poles of the voltage signals to the PE respectively;
further, the insulation detection module 2 includes:
the acquisition circuit 21 is connected with the magnetic bearing winding 6 at a data acquisition end, and the acquisition circuit 21 is used for acquiring and obtaining real-time voltage signals and shell grounding point signals (PE) at two ends of the magnetic bearing winding 6 and carrying out filtering and amplifying treatment on the voltage signals; specifically, the acquisition circuit 21 amplifies the acquired voltage signal by 10 to 100 times, and more specifically, by a factor according to the magnitude of the actual acquired voltage signal.
Still further, the acquisition circuit 21 includes:
as shown in fig. 5, the magnetic bearing winding positive electrode acquisition circuit is connected with the positive electrode end of the magnetic bearing winding 6 and is used for acquiring a real-time voltage signal of the positive electrode end of the magnetic bearing winding 6;
as shown in fig. 6, the magnetic bearing winding negative electrode acquisition circuit is connected with the negative electrode end of the magnetic bearing winding 6 and is used for acquiring and obtaining a real-time voltage signal of the negative electrode end of the magnetic bearing winding 6;
the shell grounding point acquisition circuit is connected with the shell of the magnetic bearing winding 6 and is used for acquiring a shell grounding point signal (PE), and particularly the shell grounding point acquisition circuit is a cable connected with the shell of the magnetic bearing winding 6;
the data processing unit 22, the data input port of the data processing unit 22 is connected with the data output port of the acquisition circuit, the data processing unit 22 is used for processing and processing the voltage signal after filtering and amplifying to obtain insulation resistance information of the positive pole and the negative pole of the voltage signal to PE respectively, and the data processing unit 22 is mainly composed of STM32F103 chips.
The main control board 3, the power input end of the main control board 3 is connected with the output end of the power module 1, the communication input port of the main control board 3 is connected with the communication output port of the insulation detection module 2, and the main control board 3 is used for processing and refining insulation resistance information to obtain state information, insulation resistance data, data alarm information and the like of the magnetic bearing winding 6;
specifically, the main control board 3 is mainly composed of an LPC1768FBD100 chip.
The touch screen 4, the touch screen 4 power input end is connected with the power module 1 output end, and the touch screen 4 communication input port is connected with the main control board 3 communication output port for show magnetic bearing winding 6 status information, insulation resistance value data, data alarm information.
When the magnetic bearing winding 6 detection device is used, the insulation detection module 2 samples voltage data of the magnetic bearing winding 6, the small voltage signal is subjected to filtering and amplifying treatment through an internal circuit of the insulation detection module 2, the signal is further processed through the data processing unit 22 to obtain insulation resistance information, the insulation resistance information is transmitted to the main control board 3, the main control board 3 processes the insulation resistance information to obtain system state information, alarm information, real-time insulation resistance information and the like, the data are transmitted to the touch screen 4, the real-time insulation resistance information and the state information of the magnetic bearing winding 6 can be read on the touch screen 4, and therefore the function of detecting the insulation resistance of the magnetic bearing winding 6 is achieved.
In a second embodiment, based on the first embodiment, as shown in fig. 4, an insulation detection system further includes:
the alarm module 5, the power input end of the alarm module is connected with the output end of the power module 1, the communication input port of the alarm module is connected with the communication output port of the main control board 3, and the alarm module 5 is used for sending out an alarm signal for reminding workers;
the alarm module 5 may be an audible and visual alarm, as desired.
Further, the alarm module 5 includes:
the power input end of the sound alarm unit 51 is connected with the output end of the power module 1, the communication input port is connected with the communication output port of the main control board 3, and the sound alarm unit 51 is used for sounding an alarm;
the power input end of the luminous alarm unit 52 is connected with the output end of the power module 1, the communication input port is connected with the communication output port of the main control board 3, and the luminous alarm unit 52 is used for emitting alarm light.
Specifically, the acoustic alarm unit 51 may be a speaker, and at least two are provided, one being installed in the room where the touch screen 4 is located, for example, in the touch screen 4, and the other being installed outside the room where the touch screen 4 is located, for example, in the equipment room where the magnetic bearing winding 6 is located;
specifically, the light emitting alarm unit 52 may be a flashing lamp, and at least two light emitting alarm units are provided, one of which is installed in a room where the touch screen 4 is located, for example, in the touch screen 4, and the other of which is installed outside the room where the touch screen 4 is located, for example, in a room where the magnetic bearing winding 6 is located.
When the insulation detection module 2 is used, voltage data sampling is carried out on the magnetic bearing winding 6, filtering and amplifying treatment is carried out on a small voltage signal through an internal circuit of the insulation detection module 2, the signal is further processed through the data processing unit 22 to obtain insulation resistance information, the insulation resistance information is then transmitted to the main control board 3, the main control board 3 is used for processing the insulation resistance information to obtain system state information, alarm information, real-time insulation resistance information and the like, the data are transmitted to the touch screen 4, the real-time insulation resistance information and the state information of the magnetic bearing winding 6 can be read on the touch screen 4, the function of detecting the insulation resistance of the magnetic bearing winding 6 is realized, when the insulation resistance is smaller than a certain threshold value, the main control board 3 sends corresponding signals to the sound alarm unit 51 and the light alarm unit 52, the sound alarm unit 51 sends alarm sounds to remind workers, and the light alarm unit 52 sends alarm lights to remind workers.
In the third embodiment, as shown in fig. 2-3, the communication output port of the main control board 3 is connected with the communication input port of the device where the magnetic bearing winding 6 is located.
When the magnetic bearing winding 6 detection device is used, the insulation detection module 2 samples voltage data, the small voltage signal is subjected to filtering and amplifying treatment through an internal circuit of the insulation detection module 2, the signal is further processed through the data processing unit 22 to obtain insulation resistance information, the insulation resistance information is transmitted to the main control board 3, the main control board 3 processes the insulation resistance information to obtain system state information, alarm information, real-time insulation resistance information and the like, the data are transmitted to the touch screen 4, the real-time insulation resistance information and the state information of the magnetic bearing winding 6 can be read on the touch screen 4, the function of detecting the insulation resistance of the magnetic bearing winding 6 is realized, when the insulation resistance is smaller than a certain threshold value, and when a certain time, for example, 20-60 seconds, for example, 40 seconds, the staff still processes the alarm information, namely, the equipment where the magnetic bearing winding 6 is located is not stopped, the main control board 3 transmits signals to the equipment where the magnetic bearing winding 6 is located, and the equipment where the magnetic bearing winding 6 is located is automatically and safely stopped.
According to needs, this embodiment may also be implemented on the basis of the second embodiment, as shown in fig. 4, specifically, the main control board 3 controls the device where the magnetic bearing winding 6 is located to automatically and safely stop later than the alarm module to send out an alarm signal, when the alarm module sends out the alarm signal for a certain time, the staff still processes the alarm information, that is, does not stop the device where the magnetic bearing winding 6 is located, and the main control board 3 sends a signal to the device where the magnetic bearing winding 6 is located, so that the device where the magnetic bearing winding 6 is located automatically and safely stops, and the certain time is 20-60 seconds, such as 35 seconds.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be apparent to those skilled in the art that the present utility model is not limited to the details of the above-described exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (7)
1. An insulation detection system, comprising:
the power supply module (1), the input end of the said power supply module (1) is connected with external power supply input, is used for changing the external power supply voltage into the voltage suitable for the detection system;
the insulation detection module (2), the power input end of the insulation detection module (2) is connected with the output end of the power module (1), and is used for collecting real-time voltage signals at two ends of the magnetic bearing winding and a shell grounding point signal (PE), filtering and amplifying the collected voltage signals, and then processing and treating the voltage signals to obtain insulation resistance information of positive poles and negative poles of the voltage signals on the PE respectively;
the main control board (3), the power input end of the main control board (3) is connected with the output end of the power module (1), the communication input port of the main control board (3) is connected with the communication output port of the insulation detection module (2), and the main control board is used for processing and refining the insulation resistance information to obtain magnetic bearing winding state information, insulation resistance data and data alarm information;
the touch screen (4), touch screen (4) power input end with power module (1) output is connected, touch screen (4) communication input port with main control board (3) communication output port is connected for show magnetic bearing winding state information, insulation resistance data, data alarm information.
2. An insulation detection system according to claim 1, wherein: the insulation detection module (2) comprises:
the acquisition circuit (21) is connected with the magnetic bearing winding at the data acquisition end, and is used for acquiring and obtaining real-time voltage signals at the two ends of the magnetic bearing winding and a shell grounding point signal (PE), and filtering and amplifying the voltage signals;
and the data input port of the data processing unit (22) is connected with the data output port of the acquisition circuit, and is used for processing and processing the voltage signals after filtering and amplifying to obtain insulation resistance information of the positive electrode and the negative electrode of the voltage signals on PE.
3. An insulation detection system according to claim 2, wherein: the acquisition circuit (21) comprises:
the magnetic bearing winding positive electrode acquisition circuit is connected with the magnetic bearing winding positive electrode end and is used for acquiring and obtaining a real-time voltage signal of the magnetic bearing winding positive electrode end;
the magnetic bearing winding negative electrode acquisition circuit is connected with the magnetic bearing winding negative electrode end and is used for acquiring and obtaining a real-time voltage signal of the magnetic bearing winding negative electrode end;
and the shell grounding point acquisition circuit is connected with the shell of the magnetic bearing winding and is used for acquiring and obtaining a shell grounding point signal (PE).
4. An insulation detection system according to claim 2, wherein: the acquisition circuit (21) amplifies the acquired voltage signals by 10-100 times.
5. An insulation detection system according to claim 1, wherein: further comprises:
the alarm module (5), alarm module (5) power input end with power module (1) output is connected, alarm module (5) communication input port is connected with main control board (3) communication output port for send the alarm signal who reminds the staff.
6. An insulation detection system according to claim 5, wherein: the alarm module (5) comprises:
the power input end of the sound alarm unit (51) is connected with the output end of the power module (1), and the communication input port is connected with the communication output port of the main control board (3) and used for sending out alarm sound;
and the power input end of the luminous alarm unit (52) is connected with the output end of the power module (1), and the communication input port is connected with the communication output port of the main control board (3) and used for emitting alarm light.
7. An insulation detection system according to claim 1, wherein: and the communication output port of the main control board (3) is connected with the communication input port of the equipment where the magnetic bearing winding is positioned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223560439.9U CN219142960U (en) | 2022-12-30 | 2022-12-30 | Insulation detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223560439.9U CN219142960U (en) | 2022-12-30 | 2022-12-30 | Insulation detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219142960U true CN219142960U (en) | 2023-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223560439.9U Active CN219142960U (en) | 2022-12-30 | 2022-12-30 | Insulation detection system |
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|---|---|
| CN (1) | CN219142960U (en) |
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- 2022-12-30 CN CN202223560439.9U patent/CN219142960U/en active Active
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