CN219145009U - Intelligent protector for multi-output ultrasonic generator - Google Patents
Intelligent protector for multi-output ultrasonic generator Download PDFInfo
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- CN219145009U CN219145009U CN202223083116.5U CN202223083116U CN219145009U CN 219145009 U CN219145009 U CN 219145009U CN 202223083116 U CN202223083116 U CN 202223083116U CN 219145009 U CN219145009 U CN 219145009U
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Abstract
The utility model discloses an intelligent protection device of a multi-path output ultrasonic generator, which relates to the technical field of ultrasonic generators, and comprises a current transformer, a current sensor and a current sensor, wherein the current transformer is arranged at the rear end of the ultrasonic generator and is used for detecting the current waveform output by each path of the ultrasonic generator and then carrying out rectification and filtering treatment; the comparator is arranged at the rear end of the current transformer and is electrically connected with the current transformer, and is used for comparing the peak current after filtering with a set threshold value, when the peak current is higher than the threshold value point after rectifying and filtering, the comparator turns over to trigger the latch to latch and protect and send the level to the main control circuit to stop the generator; the utility model protects the multipath output ultrasonic generator from short circuit and overcurrent, and also protects unstable current caused by aging or falling of the vibrator; meanwhile, the protection caused by damage of which path of energy converter can be displayed after protection, so that the maintenance is convenient.
Description
Technical Field
The utility model relates to the technical field of ultrasonic generators, in particular to an intelligent protection device of a multi-output ultrasonic generator.
Background
At present, protection of the multi-output ultrasonic generator mainly utilizes a shunt or a current Hall element to protect the front end, and the protection has a certain protection effect on short circuit and overcurrent, but the current of one or more transducers in the multi-output ultrasonic generator is unstable due to ageing or falling of the transducers, so that the current cannot be well protected in time, the ageing of other transducers can be accelerated, and finally the transducers and the generator are damaged.
Disclosure of Invention
The utility model aims to solve the problems that in the prior art, certain one or more paths of transducers in a multi-output ultrasonic generator cannot be well protected in time due to unstable current caused by aging or falling of vibrators, so that the aging of other vibrators can be accelerated, and finally the transducers and the generator are damaged.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
intelligent protector for multi-output ultrasonic generator, comprising
The current transformer is arranged at the rear end of the ultrasonic generator and is used for detecting the current waveform output by each path of the ultrasonic generator, then rectifying and filtering the current waveform, and one end of each path of output end lead of the ultrasonic generator respectively penetrates through the corresponding inductance hole of the current transformer and is connected to the corresponding output end transducer;
the comparator is arranged at the rear end of the current transformer and is electrically connected with the current transformer, and is used for comparing the peak current after filtering with a set threshold value, and when the peak current is higher than the threshold value point after rectifying and filtering, the comparator turns over;
the latch consists of an encoder, a trigger and a NAND gate, and when the comparator turns over, the latch is triggered to carry out latch protection and send the level to the main control circuit to stop the generator; the method can distinguish which way of energy converter is damaged to trigger protection, and sends out the signal code of the damage of the way of energy converter.
As a further technical scheme of the utility model, the signal code output end of the latch is connected with the signal input end of the display, and the display is used for receiving the signal code transmitted by the latch and displaying the signal code on the nixie tube for judging the line where the transducer is damaged.
As a further technical scheme of the utility model, the protection speed of the intelligent protection device is ns, and the triggering protection caused by the damage of multiple paths of transducers cannot occur in the same time, so that only one path of display is needed.
The utility model has the beneficial effects that:
the utility model protects the multipath output ultrasonic generator from short circuit and overcurrent, and also protects unstable current caused by aging or falling of the vibrator; meanwhile, the protection caused by damage of which path of energy converter can be displayed after protection, so that the maintenance is convenient.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Detailed Description
In order to further describe the technical means and effects adopted by the present utility model for achieving the intended purpose, the following detailed description will refer to the specific implementation, structure, characteristics and effects according to the present utility model with reference to the accompanying drawings and preferred embodiments.
Referring to fig. 1, an intelligent protection device of a multi-output ultrasonic generator includes a current transformer disposed at the rear end of the ultrasonic generator for detecting current waveforms output from each path of the ultrasonic generator, and then rectifying and filtering the current waveforms, one end of each output end lead of the ultrasonic generator passes through the corresponding inductance hole of the current transformer and is connected to the corresponding output end to be connected with the transducer, and the other end of each output end lead of the ultrasonic generator is directly connected to the other end of the transducer from the main transformer without passing through eight current transformers; the comparator is arranged at the rear end of the current transformer and is electrically connected with the current transformer, and is used for comparing the filtered peak current with a set threshold value, when one path of energy converter is short-circuited, the peak current is higher than that in normal operation when the current is unstable due to overcurrent or vibrator aging or falling, and when the peak current is higher than a threshold value point after rectification and filtration, the comparator turns over; the latch consists of an encoder, a trigger and a NAND gate, and when the comparator turns over, the latch is triggered to carry out latch protection and send the level to the main control circuit to stop the generator; the method can distinguish which way of energy converter is damaged to trigger protection, and sends out the signal code of the damage of the way of energy converter. The current transformer, the comparator, the latch and the display are common electronic equipment in the market and can be used through normal circuit wiring.
Further, the signal code output end of the latch is connected with the signal input end of the display, and the display is used for receiving the signal code transmitted by the latch and displaying the signal code on the nixie tube, so that the damage of the transducer on the way can be clearly judged.
Furthermore, the protection speed of the protection circuit is ns, and the trigger protection caused by the damage of multiple paths of transducers cannot be realized at the same time, so that only one path of display is needed.
When the utility model is used, the current waveform of each output path is detected at the rear end of the ultrasonic generator through the current transformer, then rectification and filtering processing is carried out, and then the current waveform is compared with a set threshold value, when a certain path of transducer is in short circuit, overcurrent or unstable current caused by aging or falling of a vibrator, peak current higher than that in normal operation is generated, when the peak current is higher than a threshold value point after rectification and filtering, the comparator is turned over, so that a latch is triggered, latch protection is carried out, and the level is sent to a main control circuit to stop the operation of the generator; the latch is a latch circuit formed by the encoder, the trigger and the NAND gate, so that the damage of which energy converter leads to protection can be distinguished, the signal is encoded and then displayed on the nixie tube, and the damage of which energy converter can be clearly known. Since the protection speed of the protection circuit is ns, the protection caused by the damage of multiple paths of transducers at the same time is impossible, and only one path of display is needed.
The present utility model is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present utility model.
Claims (3)
1. Intelligent protector for multi-output ultrasonic generator, characterized by comprising
The current transformer is arranged at the rear end of the ultrasonic generator and is used for detecting the current waveform output by each path of the ultrasonic generator, then rectifying and filtering the current waveform, and one end of each path of output end lead of the ultrasonic generator respectively penetrates through the corresponding inductance hole of the current transformer and is connected to the corresponding output end transducer;
the comparator is arranged at the rear end of the current transformer and is electrically connected with the current transformer, and is used for comparing the peak current after filtering with a set threshold value, and when the peak current is higher than the threshold value point after rectifying and filtering, the comparator turns over;
the latch consists of an encoder, a trigger and a NAND gate, and when the comparator turns over, the latch is triggered to carry out latch protection and send the level to the main control circuit to stop the generator; the method can distinguish which way of energy converter is damaged to trigger protection, and sends out the signal code of the damage of the way of energy converter.
2. The intelligent protection device of the multi-output ultrasonic generator according to claim 1, wherein the signal code output end of the latch is connected with the signal input end of the display, and the display is used for receiving the signal code transmitted by the latch and displaying the signal code on the nixie tube for judging the line where the transducer is damaged.
3. The intelligent protection apparatus of a multiple output ultrasonic generator of claim 1, wherein the intelligent protection apparatus protection speed is ns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223083116.5U CN219145009U (en) | 2022-11-21 | 2022-11-21 | Intelligent protector for multi-output ultrasonic generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223083116.5U CN219145009U (en) | 2022-11-21 | 2022-11-21 | Intelligent protector for multi-output ultrasonic generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219145009U true CN219145009U (en) | 2023-06-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223083116.5U Active CN219145009U (en) | 2022-11-21 | 2022-11-21 | Intelligent protector for multi-output ultrasonic generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219145009U (en) |
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2022
- 2022-11-21 CN CN202223083116.5U patent/CN219145009U/en active Active
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