CN113687221A - Small-size relay automatic checkout device - Google Patents
Small-size relay automatic checkout device Download PDFInfo
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- CN113687221A CN113687221A CN202110924315.5A CN202110924315A CN113687221A CN 113687221 A CN113687221 A CN 113687221A CN 202110924315 A CN202110924315 A CN 202110924315A CN 113687221 A CN113687221 A CN 113687221A
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- 238000001514 detection method Methods 0.000 claims abstract description 66
- 238000012360 testing method Methods 0.000 claims abstract description 55
- 210000000056 organ Anatomy 0.000 claims description 4
- 101710179738 6,7-dimethyl-8-ribityllumazine synthase 1 Proteins 0.000 claims description 3
- 101710186608 Lipoyl synthase 1 Proteins 0.000 claims description 3
- 101710137584 Lipoyl synthase 1, chloroplastic Proteins 0.000 claims description 3
- 101710090391 Lipoyl synthase 1, mitochondrial Proteins 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 7
- 239000000523 sample Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
- G01R31/3278—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches of relays, solenoids or reed switches
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Abstract
The invention discloses a small-sized relay automatic detection device, which belongs to the technical field of relay automatic detection and comprises a detection circuit board, wherein a control chip, a key circuit, a power circuit, a test in-process and test result prompting circuit, a detection circuit and a buzzer circuit are respectively soldered on the detection circuit board, and the power circuit is respectively connected with the control chip and a relay coil circuit for supplying power. According to the automatic detection device for the small relay, after a start key SW1 is pressed, a control chip receives a start signal and detects the standard states of the relay to be detected, the LED1 outputs a normally-on LED during detection, if the result meets the standard requirement, the LED2 outputs a normally-on LED2 green light, the passive buzzer LS1 sounds one sound, and if the result does not meet the standard requirement, the LED3 outputs a normally-on laser LED3 red light, and the passive buzzer LS1 sounds two sounds, so that the cost is low, and the detection is quickly and accurately realized.
Description
Technical Field
The invention relates to the technical field of automatic detection of relays, in particular to an automatic detection device for a small relay.
Background
Relays are widely used in the electronics industry as an important electrical component. However, the relay is difficult to carry out automatic detection due to the problems of small size and the like, and the relay electrical comprehensive tester and the automatic detection equipment are used for testing the contact resistance between the test contacts of the electromagnetic relay, so that the test efficiency can be improved. The automatic relay detection equipment in the prior art only has one row of vertical test probes, and the probe head contacts with the relay pin tiptoe when testing, because test speed is fast, and area of contact is little, causes the contact instability, leads to contact resistance misjudgment, and the misjudgment proportion accounts for about 10% in the testing process for the degree of accuracy greatly reduced of product test.
CN210181172U discloses an automatic detection device for a small-sized weak current control relay, which controls a constant current power supply 2 in a detection platform through a dedicated automatic control software interface in an automatic detection control device 5, so that the constant current power supply outputs current to drive a relay coil. The initial current was set to 24 VDC. Recording the original state data of the relay to be tested, changing the output value of the coil driving current of the relay through automatic control software until the output contact of the relay acts, and recording the action value.
There are the following problems:
detection mechanism need cooperate and detect both synchronous uses of platform, leads to single check out test set can't detect miniature relay, and the extra cost is needed in the control that increases.
Disclosure of Invention
The invention aims to provide a small relay automatic detection device to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a small-size relay automatic checkout device, includes detection circuitry board, on the detection circuitry board respectively the soldering have control chip, keying circuit, power supply circuit, test in and test result suggestion circuit, detection circuitry and bee calling organ circuit, power supply circuit is connected with control chip and detection circuitry respectively and is used for the power supply, keying circuit and the input control chip of the circuit that detects are connected, control chip's output and test in, test result suggestion circuit and bee calling organ circuit connection.
Furthermore, pins 1, 2 and 3 of the control chip are connected to a test and test result prompting circuit; the pin 12 of the control chip is connected with the parallel connection point of the resistor R6, the capacitor C3 and the DEBUG1 terminal angle 1 for resetting; pin 14 of the control chip is connected with DEBUG1 terminal angle 2; pins 15 and 16 of the control chip are respectively connected to the DEBUG1 end corners 5 and 4, and are used for burning a C programming program into the control chip from a five-pin position of the DEBUG 1; the pin 17 of the control chip is connected with the key circuit; a pin 26 of the control chip is connected with the buzzer circuit, and a pin 36 of the control chip is connected with a base electrode end of the triode of the detection circuit; pins 45, 46, 47 and 48 of the control chip are respectively connected with the relay contact terminals connected with the detection circuit, and are used for detecting the standard states of the relay.
Furthermore, the terminal corner 1 of the DM1-115GP-1 travel switch SW1 of the key circuit is connected with the parallel connection point of the resistor R16 and the pin 17 of the control chip 2, the resistor R16 is connected with VCC, and the terminal corners 2 and 3 of the DM1-115GP-1 travel switch SW1 are grounded.
Further, pin N of an AM22-12W-V chip U1 of the power supply circuit is connected with a terminal angle 1 of CN1 and CN3, pin L series fuse FU of an AM22-12W-V chip U1 is connected with a terminal angle 3 of CN1 and CN3, pin Vol + of an AM22-12W-V chip U1 is connected with 24V voltage, the pin Vol + supplies 24V voltage to the relay coil circuit, and pin Vol 2 supplies a control chip power supply (5V) and 14 pins of the chip.
Furthermore, the test circuit is divided into three circuits with the same circuit, three states of a circuit in test, a circuit qualified in test and a circuit bad in test are respectively formed, a collector series resistor R38 and an LED1 of a DTC143XCA transistor N4 of the circuit in test are connected in VCC, the base of the DTC143XCA transistor N4 is connected with a pin 1 of the control chip, and the bases of the DTC143XCA transistor N5 and the N6 of the circuit qualified in test and the circuit bad in test are connected with pins 2 and 3 of the control chip.
Furthermore, an end corner 1 of a ship-shaped switch K1 of the detection circuit is connected to a pin N of an AM22-12W-V chip U1, an end corner 2 of the ship-shaped switch K1 is connected to an end corner 3 of a power relay K2, an end corner 4 of a power relay K2 is connected to an end corner of a coil 13 of a relay K3, an end corner 1 of the power relay K2 is connected to a parallel connection point of a diode D5 and a VCC, an end corner 2 of a power relay K2 is connected to a collector of a diode D5 and a DTC143XCA transistor N1, and a base of the DTC143XCA transistor N1 is connected to a pin 36 of the control chip 2;
the coil terminal angle 14 of the power relay K3 is connected with the terminal angle 2 of the relay K4, the terminal angle 1 of the relay K4 is connected with 24V voltage, and the terminal angle 3 of the relay K4 is connected with the L end of a power circuit;
the terminal angle 1 of the power relay K3 is connected with the parallel point of a resistor R4 and a pin 47 of a control chip, the terminal angle 5 of the relay K3 is connected with the parallel point of a resistor R3 and a pin 48 of the control chip, the terminal angle 4 of the relay K3 is connected with the parallel point of a resistor R2 and a pin 46 of the control chip, the terminal angle 8 of the relay K3 is connected with the parallel point of a resistor R1 and a pin 45 of the control chip, and the other end of the resistor R1, the resistor R2, the resistor R3 and the resistor R4 is VCC.
Furthermore, the base of a DTC143XCA transistor N3 of the buzzer circuit is connected to the pin 26 of the control chip, and the collector series resistor R31 of the DTC143XCA transistor N3 is connected with the passive buzzer LS 1.
Furthermore, the end corners 1, 5, 4 and 8 of the relay K4 are electrically connected with four sets of screw holes formed on the detection circuit board.
Compared with the prior art, the invention has the beneficial effects that:
according to the automatic detection device for the small relay (detecting the direct current 24v and the alternating current 220v of the relay coil), after a start key SW1 is pressed, a control chip receives a start signal to detect each standard state of the relay to be detected, in the detection process, a light-emitting diode LED1 is normally on after the LED outputs, if the detection result meets the standard requirement, the light-emitting diode LED2 is normally on through the output of an LED2, a passive buzzer LS1 makes a sound, if the detection result does not meet the standard requirement, the light-emitting diode LED3 is normally on through the output of an LED3, and the passive buzzer LS1 makes a sound, so that the cost is low, and the detection can be quickly and accurately realized.
Drawings
FIG. 1 is a diagram of the structure of a test circuit board of the present invention;
FIG. 2 is a schematic diagram of a control chip of the present invention;
FIG. 3 is a schematic diagram of a keying circuit of the present invention;
FIG. 4 is a schematic diagram of a power supply circuit of the present invention;
FIG. 5 is a schematic diagram of a circuit for prompting the test result and the test in the test according to the present invention
FIG. 6 is a schematic diagram of a detection circuit of the present invention
Fig. 7 is a schematic diagram of a buzzer circuit of the present invention.
In the figure: 1. detecting the circuit board; 2. a control chip; 3. a key circuit; 4. a power supply circuit; 5. a test neutralization test result prompting circuit; 6. a detection circuit; 7. a buzzer circuit.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an automatic detection device for a miniature relay comprises a detection circuit board 1, wherein a control chip 2, a key circuit 3, a power circuit 4, a test-in-process and test-result prompting circuit 5, a detection circuit 6 and a buzzer circuit 7 are soldered on the detection circuit board 1 respectively, the power circuit 4 is connected with the control chip 2 and the relay coil circuit 6 respectively for supplying power, the key circuit 3 is connected with the input end control chip 2 of the relay coil circuit 6, and the output end of the control chip 2 is connected with the test-in-process and test-result prompting circuit 5 and the buzzer circuit 7.
Referring to fig. 2, pins 1, 2 and 3 of the control chip 2 are connected to the test circuit 5; the pin 12 of the control chip 2 is connected with the parallel connection point of the resistor R6, the capacitor C3 and the DEBUG1 terminal angle 1 for resetting; pin 14 of the control chip 2 is connected with DEBUG1 terminal corner 2; pins 15 and 16 of the control chip 2 are respectively connected to the end corners 5 and 4 of the DEBUG1, and are used for burning a C programming program into the control chip 2 from five pins of the DEBUG 1; a pin 17 of the control chip 2 is connected with the key circuit 3; a pin 26 of the control chip 2 is connected with the buzzer circuit 7, and a pin 36 of the control chip 2 is connected with the base electrode end of the triode of the detection circuit 6; pins 45, 46, 47 and 48 of the control chip 2 are respectively connected with the relay contact terminals connected with the detection circuit 6, and each standard state of the relay is detected.
Referring to fig. 3, the terminal corner 1 of the DM1-115GP-1 travel switch SW1 of the key circuit 3 is connected to the parallel point of the resistor R16 and the pin 17 of the control chip 2, the resistor R16 is connected to VCC, and the terminal corners 2 and 3 of the DM1-115GP-1 travel switch SW1 are grounded.
Referring to FIG. 4, pin N of U1 of AM22-12W-V chip of power circuit 4 is connected to terminal 1 of CN1 and CN3, pin L of U1 of AM22-12W-V chip is connected to terminal 3 of CN1 and CN3 in series, pin Vol + of U1 of AM22-12W-V chip is connected to 24V voltage, pin Vol + supplies 24V voltage to relay coil circuit 6, and pin Vo2 supplies 5V voltage to chip connected to 14 pins of control chip (2). Firstly, after the CN1 and CN3 terminals are connected with the external 220V voltage, the AM22-12W-V chip U1 outputs a direct current voltage 24V for supplying power to the relay coil circuit 6 and also outputs a direct current voltage 5V for supplying power to the control chip 2.
Referring to fig. 5, the test circuit 5 is divided into three circuits with the same circuit path, which forms three states of a circuit under test, a circuit under test that is qualified in test and a circuit under test that is bad in test, wherein the serial resistor R38 of the N collector of the DTC143XCA transistor and the LED1 of the circuit under test are connected to VCC, the base of the N4 of the DTC143XCA transistor is connected to the pin 1 of the control chip 2, and the bases of the N5 and N6 of the DTC143XCA transistor of the circuit under test and the circuit under test are connected to the pins 2 and 3 of the control chip 2.
Referring to fig. 6, a terminal angle 1 of a ship-shaped switch K1 of the detection circuit 6 is connected to a pin N of an AM22-12W-V chip U1, a terminal angle 2 of the ship-shaped switch K1 is connected to a terminal angle 3 of a power relay K2, a terminal angle 4 of the power relay K2 is connected to a terminal angle of a coil 13 of a relay K3, a terminal angle 1 of a coil of the power relay K2 is connected to a parallel point of a diode D5 and VCC, a terminal angle 2 of a coil of the power relay K2 is connected to a collector of a diode D5 and a DTC143XCA transistor N1, and a base of the DTC143XCA transistor N1 is connected to a pin 36 of the control chip 2;
the coil terminal angle 14 of the power relay K3 is connected with the terminal angle 2 of the relay K4, the terminal angle 1 of the relay K4 is connected with 24V voltage, the terminal angle 3 of the relay K4 is connected with the L end of the power circuit 4, and the voltage (alternating current 220V or direct current 24V) of the measured relay coil is selected at the ship-shaped switch K1 and the power relay K4;
the terminal angle 1 of the power relay K3 is connected with the parallel point of a resistor R4 and a pin 47 of a control chip 2, the terminal angle 5 of the relay K3 is connected with the parallel point of a resistor R3 and a pin 48 of the control chip 2, the terminal angle 4 of the relay K3 is connected with the parallel point of a resistor R2 and a pin 46 of the control chip 2, the terminal angle 8 of the relay K3 is connected with the parallel point of a resistor R1 and a pin 45 of the control chip 2, the other ends of the resistor R1, the resistor R2, the resistor R3 and the resistor R4 are connected with VCC, the terminal angles 1, 5, 4 and 8 of the relay K3 are also electrically connected with four groups of screw holes formed in the detection circuit board 1, and the relay to be detected is inserted into the screw holes of the power relay K3.
Referring to fig. 7, the gate of the DTC143XCA transistor N3 of the buzzer circuit 7 is connected to the pin 26 of the control chip 2, the drain series resistor R31 of the DTC143XCA transistor N3 is connected to the passive buzzer LS1, when the chip detection result is not qualified, the DTC143XCA transistor N3 controls the chip 2 to output a positive voltage from the 26-pin BUZZPWM, and the DTC143XCA transistor N3 is turned on to turn on the passive buzzer LS 1.
When a start key DM1-115GP-1 travel switch SW1 is pressed, a control chip 2 receives a start signal, each standard state of a relay to be detected is detected from a Rely (pin 36), ( pin 45, 46, 47 and 48), small equipment can be automatically checked into the connection state of each contact in the states of coil power on and coil power off, in the detection process, a light-emitting diode LED1 is normally on after the output of an LED1 (pin 1) is detected, a light-emitting diode LED2 is normally on when the output of the LED2 (pin 2) is detected to meet the standard requirement, a passive buzzer LS1 sounds one sound, and a laser LED3 is normally on and a laser LED1 sounds two sounds if the output of the LED3 (pin 3) is detected to not meet the standard requirement.
The chip program is mainly detected according to the standard:
when the coil of the small relay is electrified, the two groups of normally open contacts of the relay are normally opened and closed, and the two groups of normally closed contacts are closed and opened.
When the coil of the miniature relay is changed from the power-on state to the power-off state, the normally open closing state is changed into the opening state when the power is on, and the normally closed state is changed into the closing state when the power is off.
The miniature relay for realizing the detection of two coils of 24v DC and 220v AC has lower cost and can accurately realize the detection.
In conclusion; according to the automatic detection device for the miniature relay, after a start key SW1 is pressed, a control chip 2 receives a start signal and detects each standard state of the relay to be detected, in the detection process, a green light of a light emitting diode LED1 is normally on after the LED outputs, when the detection result meets the standard requirement, the green light of the light emitting diode LED2 is normally on through the LED2, a passive buzzer LS1 sounds one sound, if the detection result does not meet the standard requirement, the light is output through the LED3, a red light of a laser LED3 is normally on, and the passive buzzer LS1 sounds two sounds, so that the automatic detection device for the miniature relay is low in cost and can realize detection quickly and accurately.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (8)
1. The utility model provides a miniature relay automatic checkout device, a serial communication port, including detection circuitry board (1), it has control chip (2) to weld respectively on detection circuitry board (1), button circuit (3), power module circuit (4), reach test result suggestion circuit (5) in the test, detection circuitry (6) and bee calling organ circuit (7), power module circuit (4) are connected with control chip (2) and detection circuitry (6) respectively and are used for the power supply, button circuit (3) and detection circuitry (6) input are connected with control chip (2), the output of control chip (2) with examine in the test and test result suggestion circuit (5) and bee calling organ circuit (7) are connected.
2. The automatic detection device for the miniature relay as claimed in claim 1, wherein pins 1, 2 and 3 of the control chip (2) are connected to a test and test result prompting circuit (5); the pin 12 of the control chip (2) is connected with the parallel connection point of the resistor R6, the capacitor C3 and the DEBUG1 terminal angle 1 for resetting; a pin 14 of the control chip (2) is connected with a DEBUG1 terminal corner 2; pins 15 and 16 of the control chip (2) are respectively connected to the DEBUG1 end corners 5 and 4, and are used for burning a C programming program into the control chip (2) from five pins of the DEBUG 1; a pin 17 of the control chip (2) is connected with the key circuit (3); a pin 26 of the control chip (2) is connected with the buzzer circuit (7), and a pin 36 of the control chip (2) is connected with a triode base end of the detection circuit (6); pins 45, 46, 47 and 48 of the control chip (2) are respectively connected with the relay contact terminals connected with the detection circuit (6) to detect the standard states of the relay.
3. The automatic detection device for the miniature relay as claimed in claim 2, characterized in that the terminal angle 1 of the DM1-115GP-1 stroke switch SW1 of the key circuit (3) is connected with the parallel point of the resistor R16 and the pin 17 of the control chip (2), the resistor R16 is connected with VCC, and the terminal angle 2 of the DM1-115GP-1 stroke switch SW1 is grounded and connected with the terminal angle 3.
4. The miniature relay automatic detection device according to claim 3, characterized in that pin N of U1 of AM22-12W-V module of power supply circuit (4) is connected with terminal angle 1 of CN1 and CN3, pin L series fuse FU of U1 of AM22-12W-V module is connected with terminal angle 3 of CN1 and CN3, terminal angle 1 and terminal angle 3 are externally connected with input AC 220V;
the pin Vol + of the AM22-12W-V module U1 is connected with 24V voltage, the pin Vol + supplies 24V voltage to the relay coil circuit (6), and the pin Vo2+ supplies 5V direct current to the control chip (2).
5. The automatic detection device for the miniature relay according to claim 4, wherein the in-test and test result prompting circuit (5) is divided into three circuits with the same circuit path, and three states of the in-test circuit, the qualified test circuit and the bad test circuit are respectively formed, a series resistor R38 and an LED1 of a collector of a DTC143XCA transistor N4 of the in-test circuit are connected to VCC, a base of the DTC143XCA transistor N4 is connected to the pin 1 of the control chip (2), and bases of the DTC143XCA transistor N5 and the N6 of the qualified test and bad test circuit are connected to the pins 2 and 3 of the control chip (2).
6. An automatic detection device for miniature relay according to claim 5, characterized in that the terminal angle 1 of ship type switch K1 of detection circuit (6) is connected with pin N of AM22-12W-V module U1, terminal angle 2 of ship type switch K1 is connected with terminal angle 3 of power relay K2, terminal angle 4 of power relay K2 is connected with terminal angle of coil 13 of relay K3, terminal angle 1 of coil of power relay K2 is connected with parallel point of diode D5 and VCC, terminal angle 2 of coil of power relay K2 is connected with collector of diode D5 and DTC143XCA transistor N1, base of DTC143XCA transistor N1 is connected with pin 36 of control chip (2);
a coil terminal angle 14 of the power relay K3 is connected with a terminal angle 2 of a relay K4, a terminal angle 1 of a relay K4 is connected with 24V voltage, and a terminal angle 3 of a relay K4 is connected with an L end of a power circuit (4);
the terminal angle 1 of the power relay K3 is connected with the parallel point of a resistor R4 and a pin 47 of a control chip (2), the terminal angle 5 of the relay K3 is connected with the parallel point of a resistor R3 and a pin 48 of the control chip (2), the terminal angle 4 of the relay K3 is connected with the parallel point of a resistor R2 and a pin 46 of the control chip (2), the terminal angle 8 of the relay K3 is connected with the parallel point of a resistor R1 and a pin 45 of the control chip (2), and the other end of the resistor R1, the resistor R2, the resistor R3 and the resistor R4 is VCC.
7. The automatic miniature relay testing device as claimed in claim 6, wherein the base of DTC143XCA transistor N3 of the buzzer circuit (7) is connected to the pin 26 of the control chip (2), and the collector series resistor R31 of the DTC143XCA transistor N3 is connected to the passive buzzer LS 1.
8. The automatic detection device of the miniature relay as claimed in claim 7, wherein the terminal corners 1, 5, 4 and 8 of the relay K4 are further electrically connected with four sets of screw holes formed on the detection circuit board (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110924315.5A CN113687221B (en) | 2021-08-12 | 2021-08-12 | Automatic detection device for miniature relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110924315.5A CN113687221B (en) | 2021-08-12 | 2021-08-12 | Automatic detection device for miniature relay |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113687221A true CN113687221A (en) | 2021-11-23 |
| CN113687221B CN113687221B (en) | 2024-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110924315.5A Active CN113687221B (en) | 2021-08-12 | 2021-08-12 | Automatic detection device for miniature relay |
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| Country | Link |
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| CN (1) | CN113687221B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115372817A (en) * | 2022-10-26 | 2022-11-22 | 国网江西省电力有限公司电力科学研究院 | Automatic detection device and method for building block type relay |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104022486A (en) * | 2014-06-25 | 2014-09-03 | 代青扩 | Domestic multifunctional electricity protector |
| CN205210219U (en) * | 2015-10-30 | 2016-05-04 | 广东利扬芯片测试股份有限公司 | Test panel is surveyed in short circuit of opening a way of chip |
| CN207992362U (en) * | 2018-03-12 | 2018-10-19 | 广州视源电子科技股份有限公司 | Detection circuit |
| CN209343340U (en) * | 2019-03-27 | 2019-09-03 | 南京林业大学 | For judge public key whether correct position intelligent real-time detection circuit |
| CN110794752A (en) * | 2019-12-10 | 2020-02-14 | 攀枝花学院 | Automatic water machine control circuit of selling in district |
| CN110927463A (en) * | 2019-12-20 | 2020-03-27 | 李彦吉 | Insulation resistance tester for safety tools and instruments |
| CN212845790U (en) * | 2020-06-12 | 2021-03-30 | 南京林业大学 | Small capacity relay characteristic detector |
-
2021
- 2021-08-12 CN CN202110924315.5A patent/CN113687221B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104022486A (en) * | 2014-06-25 | 2014-09-03 | 代青扩 | Domestic multifunctional electricity protector |
| CN205210219U (en) * | 2015-10-30 | 2016-05-04 | 广东利扬芯片测试股份有限公司 | Test panel is surveyed in short circuit of opening a way of chip |
| CN207992362U (en) * | 2018-03-12 | 2018-10-19 | 广州视源电子科技股份有限公司 | Detection circuit |
| CN209343340U (en) * | 2019-03-27 | 2019-09-03 | 南京林业大学 | For judge public key whether correct position intelligent real-time detection circuit |
| CN110794752A (en) * | 2019-12-10 | 2020-02-14 | 攀枝花学院 | Automatic water machine control circuit of selling in district |
| CN110927463A (en) * | 2019-12-20 | 2020-03-27 | 李彦吉 | Insulation resistance tester for safety tools and instruments |
| CN212845790U (en) * | 2020-06-12 | 2021-03-30 | 南京林业大学 | Small capacity relay characteristic detector |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115372817A (en) * | 2022-10-26 | 2022-11-22 | 国网江西省电力有限公司电力科学研究院 | Automatic detection device and method for building block type relay |
| CN115372817B (en) * | 2022-10-26 | 2023-03-14 | 国网江西省电力有限公司电力科学研究院 | Automatic detection device and method for building block type relay |
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| Publication number | Publication date |
|---|---|
| CN113687221B (en) | 2024-07-02 |
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