CN216210649U - Acceleration service life detection device for optical coupler of textile electric control system - Google Patents
Acceleration service life detection device for optical coupler of textile electric control system Download PDFInfo
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- CN216210649U CN216210649U CN202122475524.4U CN202122475524U CN216210649U CN 216210649 U CN216210649 U CN 216210649U CN 202122475524 U CN202122475524 U CN 202122475524U CN 216210649 U CN216210649 U CN 216210649U
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- optical coupler
- current regulator
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Abstract
The utility model discloses an optical coupler acceleration service life detection device of a textile electric control system, which comprises a signal generator, a current regulator, an optical coupler and an oscilloscope for detection, wherein the signal generator can send a high-level signal or a low-level signal and can adjust the frequency and the duty ratio of the signal; the signal generator is electrically connected with a current regulator, the current regulator is electrically connected with an optical coupler, and the optical coupler is electrically connected with an oscilloscope for detection; the current regulator comprises a first resistor, a second resistor, a third resistor, a triode, a diode and a power supply VCC. The utility model utilizes the signal generator to change the frequency and the duty ratio of the signal in the current; controlling the input current of the optocoupler by using a current regulator; then according to the size of frequency and electric current, the accelerated life-span time of the opto-coupler is surveyed out, the effectual test time that reduces the opto-coupler life-span to whether the verification opto-coupler can reach the design requirement.
Description
Technical Field
The utility model relates to the field of optocoupler service life detection devices, in particular to an optocoupler accelerated service life detection device of a textile electronic control system.
Background
The optical coupler is also called as a photoelectric isolator or a photoelectric coupler, and is called as an optical coupler for short, and the optical coupler is widely applied to a textile electric control mainboard and used for realizing function control of a main control unit. But the stability of the device directly affects the stability and reliability of the product. Because the performance problem of the device often causes the product function to be abnormal, and the adverse quality influence is caused, therefore, the opto-coupler service life detection which is an important detection item of the device is a key detection index of the comprehensive performance of the device, and the scientific and effective detection of the index has very important significance.
The general service life of the optical coupler is 10 ten thousand hours, the maximum service life is 100 ten thousand hours, the consumed time is long, and general equipment cannot be tested; and the device is greatly influenced by input current, the larger the current is, the shorter the service life is, the common equipment can not change the test frequency, and the test efficiency can not be improved. Thus, fine control of the current is required. This presents new challenges to the advancement of inspection detection technology.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the utility model provides an optical coupler accelerated life detection device for a textile electric control system, which has the following specific technical scheme:
an optical coupler acceleration service life detection device of a textile electric control system comprises a signal generator, a current regulator, an optical coupler and an oscilloscope for detection, wherein the signal generator can send a high-level signal or a low-level signal and can adjust the frequency and the duty ratio of the signal;
the signal generator is electrically connected with a current regulator, the current regulator is electrically connected with an optical coupler, and the optical coupler is electrically connected with an oscilloscope for detection;
the current regulator comprises a first resistor, a second resistor, a third resistor, a triode, a diode and a power supply VCC.
Preferably, the output end of the signal generator is connected to the input end of the current regulator, the input end of the current regulator is connected to one end of a third resistor, the other end of the third resistor is respectively connected to one end of the first resistor and the base of the triode, the power supply VCC is respectively connected to the other end of the first resistor, the emitter of the triode and the optocoupler, one end of the second resistor is respectively connected to the collector of the triode and the optocoupler, and the other end of the second resistor is grounded.
Preferably, the cathode of the diode is connected to the emitter of the triode, and the anode of the diode is connected to the collector of the triode.
The utility model has the beneficial effects that:
(1) the utility model utilizes the signal generator to change the frequency and the duty ratio of the signal in the current; controlling the input current of the optocoupler by using a current regulator; then according to the size of frequency and electric current, the accelerated life-span time of the opto-coupler is surveyed out, the effectual test time that reduces the opto-coupler life-span to whether the verification opto-coupler can reach the design requirement.
(2) The problems of unstable frequency, damage of a triode, incapability of controlling input current of an optocoupler and the like in the service life test can be effectively avoided through the current regulator; and the device is convenient and reliable, simple in structure, low in cost, easy to realize and good in benefit.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the technical description will be briefly introduced below. The drawings described below are only for the purpose of better understanding the utility model and should not be taken as limiting the utility model.
FIG. 1 is a schematic view of the overall structural connection of the present invention;
FIG. 2 is a schematic circuit connection of the present invention;
the reference numbers in the figure are 1-signal generator, 2-current regulator, 21-first resistor, 22-second resistor, 23-third resistor, 24-triode, 25-diode, 3-optical coupler and 4-oscilloscope for detection.
Detailed Description
The following description describes alternative embodiments of the utility model to teach those skilled in the art how to make and reproduce the utility model. Some conventional aspects have been simplified or omitted for the purpose of teaching the present invention. Those skilled in the art will appreciate that variations or substitutions from these embodiments will be within the scope of the utility model. Those skilled in the art will appreciate that the features described below can be combined in various ways to form multiple variations of the utility model. Thus, the present invention is not limited to the following embodiments, but is only limited by the claims and their equivalents.
As shown in fig. 1, the device for detecting the acceleration life of an optical coupler of a textile electric control system comprises a signal generator 1, a current regulator 2, an optical coupler 3 and an oscilloscope detector 4, wherein the signal generator 1 can send a high-level signal or a low-level signal and can adjust the frequency and duty ratio of the signal;
the signal generator 1 is electrically connected with a current regulator 2, the current regulator 2 is electrically connected with an optical coupler 3, and the optical coupler 3 is electrically connected with an oscilloscope detector 4;
the current regulator 2 comprises a first resistor 21, a second resistor 22, a third resistor 23, a triode 24, a diode 25 and a power supply VCC.
As shown in fig. 2, the output end of the signal generator 1 is connected to the input end of the current regulator 2, the input end is connected to one end of a third resistor 23, the other end of the third resistor 23 is respectively connected to one end of the first resistor 21 and the base of the triode 24, the power supply VCC is respectively connected to the other end of the first resistor 21, the emitter of the triode 24 and the optocoupler 3, one end of the second resistor 22 is respectively connected to the collector of the triode 24 and the optocoupler 3, and the other end of the second resistor 22 is grounded.
The cathode of the diode 25 is connected to the emitter of the transistor 24, and the anode of the diode 25 is connected to the collector of the transistor 24.
The working principle is as follows: the signal generator 1 sends a high level signal to drive the triode 24 to work, the input current of the triode 24 is adjusted through the third resistor 23 and the first resistor 21, the base electrode of the triode 24 can work normally, the triode 24 is driven to work, after the triode 24 is turned on, the power supply VCC current flows into the ground through the triode 24 and the second resistor 22, at the moment, the optical coupler 3 does not work, and the oscilloscope detection 4 cannot detect the signal; the signal generator 1 sends a low level signal, at the moment, the triode 24 does not work, the current of the power supply VCC flows to the optocoupler 3 and the second resistor 22, the optocoupler 3 is conducted, the diode 25 mainly plays a role of follow current to protect the triode 24, the optocoupler 3 is detected by the oscilloscope after being conducted, the high and low level signal can be detected, and the current passing through the optocoupler 3 can be adjusted by adjusting the second resistor 22; the signal generator 1 can adjust the frequency and the duty ratio of a signal and adjust the switching frequency of the optical coupler 3, so that the service life of the optical coupler 3 can be calculated through a conversion formula, and whether the optical coupler 3 can reach the design service life or not can be verified.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes 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. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (3)
1. The device for detecting the acceleration service life of the optical coupler of the textile electric control system is characterized by comprising a signal generator (1), a current regulator (2), the optical coupler (3) and an oscilloscope detector (4), wherein the signal generator (1) can send a high-level signal or a low-level signal and can adjust the frequency and the duty ratio of the signal;
the signal generator (1) is electrically connected with the current regulator (2), the current regulator (2) is electrically connected with the optical coupler (3), and the optical coupler (3) is electrically connected with the oscilloscope detector (4);
the current regulator (2) comprises a first resistor (21), a second resistor (22), a third resistor (23), a triode (24), a diode (25) and a power supply VCC.
2. The textile electric control system optical coupler (3) accelerated life detection device as claimed in claim 1, wherein the output end of the signal generator (1) is connected to the input end of the current regulator (2), the input end is connected to one end of a third resistor (23), the other end of the third resistor (23) is respectively connected to one end of a first resistor (21) and the base of a triode (24), the power supply VCC is respectively connected to the other end of the first resistor (21), the emitter of the triode (24) and the optical coupler (3), one end of a second resistor (22) is respectively connected to the collector of the triode (24) and the optical coupler (3), and the other end of the second resistor (22) is grounded.
3. An accelerated lifetime detection device of a textile electrical control system optocoupler (3) according to claim 2, characterized in that the diode (25) is connected with its negative pole to the emitter of the transistor (24) and the diode (25) is connected with its positive pole to the collector of the transistor (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122475524.4U CN216210649U (en) | 2021-10-14 | 2021-10-14 | Acceleration service life detection device for optical coupler of textile electric control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122475524.4U CN216210649U (en) | 2021-10-14 | 2021-10-14 | Acceleration service life detection device for optical coupler of textile electric control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216210649U true CN216210649U (en) | 2022-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122475524.4U Active CN216210649U (en) | 2021-10-14 | 2021-10-14 | Acceleration service life detection device for optical coupler of textile electric control system |
Country Status (1)
| Country | Link |
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| CN (1) | CN216210649U (en) |
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2021
- 2021-10-14 CN CN202122475524.4U patent/CN216210649U/en active Active
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