High-frequency transformer withstand voltage detection device

Abstract

The utility model discloses a high-frequency transformer withstand voltage detection device, which comprises a mounting panel, a lifting mechanism, a supporting mechanism, a pin butt joint mechanism and an electrical control box, the pin butt joint mechanism is arranged above the mounting panel, the electrical control box is arranged at the bottom of the mounting panel, a winding conduction detection universal board is arranged in the electrical control box, and the winding conduction detection universal board is connected with the lifting mechanism. The pin butt joint mechanism is connected with the winding conduction detection universal board. The high-voltage relay is simple in structure and convenient to realize protection and isolation of a discharged probe in a detection process, the situation that other electrical components are broken down by high-voltage discharge is avoided, and meanwhile, the high-voltage relay is long in service life and is not easy to damage; the high-frequency transformer can be overhauled according to a test state indicating lamp; the multi-winding test change-over switch realizes conduction test of various high-frequency transformer (multi-winding) products. And when poor conduction occurs, the locking machine is mistaken, and a QE professional quality person is waited for unlocking.

Description

Technical Field

[0001] The utility model relates to the field of high-frequency transformer withstand voltage detection, in particular to a high-frequency transformer withstand voltage detection device. Background Art

[0002] After the high-frequency transformer is processed, in order to ensure the performance of the high-frequency transformer, it is necessary to perform a withstand voltage test on the high-frequency transformer before leaving the factory, that is, to connect the pins of the high-frequency transformer with the high-voltage probe, so that the high-voltage current can be passed into the high-frequency transformer for withstand voltage test. When the test is completed, if the high-frequency transformer circuit is normal, it means that the high-frequency transformer is qualified.

[0003] At present, the wire package continuity test in high-frequency transformer detection is mainly carried out through probe detection, that is, when the voltage test device performs the product wire package continuity test, the two sets of probes for the wire package continuity test are connected, and both sets of probes are at low voltage. When the voltage test device performs the product voltage test, the two sets of probes for the wire package continuity test are separated by a cylinder, one of the two sets of probes is for testing high voltage, and the other side is for low voltage. The above-mentioned wire package continuity detection device has major defects. First, the probe is exposed. Under the condition of high-voltage discharge (that is, during the voltage test), the probe will have the risk of breaking through other electrical components. Second, the probe is exposed outside. During long-term use, the probe is easy to be damaged, and there is a case of misjudgment of continuity detection (that is, the contact between the probe and the pin is poor). Summary of the invention

[0004] In view of the deficiencies of the above-mentioned prior art, the utility model proposes a high-frequency transformer withstand voltage detection device, which is convenient for protecting the probe during the detection process and separating the high and low voltages through the coil conduction relay. There will be no situation where high-voltage discharge breaks down other electrical components. The probe is protected, so it will not be easily damaged and the service life of the probe is long.

[0005] To achieve the above-mentioned purpose, the scheme of the utility model is as follows: a high-frequency transformer withstand voltage detection device, including an installation panel, a lifting mechanism, a supporting mechanism, a pin docking mechanism and an electrical control box, wherein a pin docking mechanism is arranged above the installation panel, an electrical control box is arranged at the bottom of the installation panel, a winding conduction detection universal board is arranged in the electrical control box, and the pin docking mechanism is connected to the winding conduction detection universal board; an upwardly extending supporting mechanism is installed on the installation panel, a lifting mechanism is arranged on the supporting mechanism, a pressing plate is arranged at the bottom of the lifting mechanism and the pressing plate is located directly above the pin docking mechanism, and the winding is pressed by the pressing plate; the pin docking mechanism includes a needle plate, a product table and a magnetic core matching mechanism, wherein a needle plate is arranged on the installation panel, a product table is arranged above the needle plate, a column is arranged between the product table and the installation panel, a plurality of docking holes are opened on the product table, a plurality of vertically arranged pin probes are installed on the needle plate, the tops of the pin probes extend into the docking holes, an insulating sleeve is arranged between the needle plate and the product table and the insulating sleeve is sleeved on the probes.

[0006] Preferably, a product winding terminal, a coil conduction high-voltage relay, a test status indicator light and a winding switching switch are provided on a universal board for winding conduction detection, wherein a plurality of groups of product terminals are provided on the universal board for winding conduction detection, each group of product terminals is respectively connected to a pin probe, a plurality of pairs of coil conduction high-voltage relays are provided on the universal board for winding conduction detection, each product terminal is connected and communicated with the coil conduction high-voltage relay, the positive terminal and the negative terminal of each product terminal are respectively connected to the coil conduction high-voltage relay, a test status indicator light is connected in series between each group of product terminals and the coil conduction high-voltage relay (a 24V power supply is connected in series to the test status indicator light, and a resistor is connected in series between the power supply and the test status indicator light), and the test status indicator light is used to display whether the winding of the high-frequency transformer is conductive.

[0007] Preferably, the low-voltage input interface of the wire pack conduction high-voltage relay is connected to the switching switch, and the other end of the switching switch is connected to the low-voltage power supply (the low-voltage power supply is 24V), and the low-voltage current is input to the wire pack conduction high-voltage relay through the switching switch; each wire pack conduction high-voltage relay is respectively connected to the electrical control box, and the switching switch is connected to the electrical control box, and the electrical control box is used to control the conduction and disconnection of the wire pack conduction high-voltage relay, and at the same time, the electrical control box controls the switching circuit of the switching switch.

[0008] Preferably, the supporting mechanism is installed on the mounting panel, the supporting mechanism includes a supporting plate and a reinforcing plate, the supporting plate is vertically installed on the mounting flat plate, the reinforcing plate is installed on the back of the supporting plate, the supporting mechanism is installed with a lifting mechanism, the lifting mechanism includes a linear guide rail, a slider and a lifting electromagnetic push rod, a vertically arranged guide rail is installed on the front of the supporting plate, a slider which is lifted and lowered on the linear guide rail is clamped on the guide rail, a lifting plate is fixed on the slider, a pressing plate is arranged below the lifting plate, a lifting electromagnetic push rod is arranged above the lifting plate and between the supporting plate, and the lifting and lowering of the lifting plate is realized by the lifting electromagnetic push rod; a buffer assembly is arranged between the lifting plate and the pressing plate, the buffer assembly includes a guide rod and a spring, a plurality of vertically arranged guide rods are arranged on the top of the pressing plate, the top of the guide rod passes through the lifting plate, a spring is sleeved on the guide rod and the spring is located between the lifting plate and the pressing plate, and a limiting block is fixed on the top of the guide rod to prevent the guide rod from separating from the lifting plate.

[0009] Preferably, a protective cover is provided on the pressing plate, the protective cover is C-shaped, the top of the protective cover is installed on the pressing plate, the end of the protective cover facing the support frame is a notch, the bottom plate is located inside the protective cover, and when the pressing plate contacts the top of the high-frequency transformer, the bottom of the protective cover contacts the top surface of the installation panel.

[0010] Preferably, each test status indicator light is connected to the input end of the electrical control box, and the output end of the controller is connected to the lifting mechanism. When the test status indicator light is off, the lifting mechanism does not work; a key switch is provided on the top surface of the installation panel, and the key switch is connected to the input end of the controller. When the key switch is triggered, the lifting mechanism rises and resets.

[0011] Preferably, a magnetic core mechanism is arranged on the mounting plane, and the magnetic core mechanism includes a probe seat, a magnetic core probe and a translation assembly. A translation assembly is arranged on the mounting plane, and a probe seat facing the needle plate is installed on the piston rod of the translation assembly. Multiple magnetic core probes are installed on the probe seat, and each magnetic core probe is docked with the magnetic core of the transformer in turn.

[0012] Preferably, the pin probe includes a contact head and an adjusting rod. The contact head is installed on the top of the adjusting rod. A threaded sleeve is installed on the top of the needle plate. The threaded sleeve is connected to the universal board for winding conduction detection. The adjusting rod extends into the threaded sleeve. A cross mouth is set on the top of the contact head.

[0013] Preferably, a 19053 multi-channel withstand voltage tester is provided in the electrical control box, and the multiple channels of the 19053 multi-channel withstand voltage tester are respectively connected to the high-voltage input interface of each coil conduction high-voltage relay.

[0014] Compared with the prior art, the advantages of the utility model are: 1. It is easy to protect and isolate the discharge probe during the detection process, and there will be no situation where high-voltage discharge breaks down other electrical components. At the same time, the high-voltage relay has a long service life and will not be easily damaged; 2. There is a test status indicator light, and the high-frequency transformer can be repaired according to the indicator light; 3. The multi-winding test switching switch can realize the conduction test of various high-frequency transformer (multi-winding) products; 4. When poor conduction occurs, the machine is locked to prevent errors and wait for QE professional quality personnel to unlock it. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a left view of the utility model.

[0016] Figure 2 This is a three-dimensional view of the utility model.

[0017] Figure 3 It is the front view of the utility model with the protective cover removed.

[0018] Figure 4 It is a left side view of the utility model with the protective cover removed.

[0019] Figure 5 It is a schematic diagram of the electrical control box of the utility model.

[0020] Figure 6 It is a schematic diagram of a universal board for winding conduction detection of the utility model.

[0021] Figure 7 This is a circuit diagram of a universal board for winding conduction detection of the utility model.

[0022] Figure 8 It is a schematic diagram of the wire package conduction relay of the utility model.

[0023] Fig. 9 It is a schematic diagram of the needle plate and the product table of the utility model.

[0024] Fig.10 It is a schematic diagram of the magnetic core docking mechanism and the product platform of the utility model.

[0025] Among them, 1. Installation panel, 2. Lifting mechanism, 3. Linear guide rail, 4. Slider, 5. Lifting electromagnetic push rod, 6. Lifting plate, 7. Support mechanism, 8. Support plate, 9. Reinforcement plate, 10. Buffer assembly, 11. Guide rod, 12. Spring, 13. Limit block, 14. Pin docking mechanism, 15. Needle plate, 16. Product table, 17. Docking hole, 18. Pin probe, 19. Contact head, 20. Adjustment rod, 21. Threaded sleeve, 2 2. Insulating sleeve, 24. Electrical control box, 25. General board for winding conduction detection, 26. Product winding terminal, 27. Wire package conduction high-voltage relay, 28. Test status indicator light, 29. Switch, 31. Pressure plate, 32. Protective cover, 33. Key switch, 34. Core alignment mechanism, 35. Probe holder, 36. Core probe, 37. Translation assembly, 38. 19053 multi-channel withstand voltage tester, 39. PLC controller. DETAILED DESCRIPTION

[0026] Now in conjunction with the accompanying drawings, the utility model is further explained.

[0027] like Figure 1-10As shown, the high-frequency transformer withstand voltage detection device includes an installation panel 1, a lifting mechanism 2, a supporting mechanism 7, a pin docking mechanism 14 and an electrical control box 24. The pin docking mechanism 14 is arranged above the installation panel 1, and the electrical control box 24 is arranged at the bottom of the installation panel 1 (that is, the installation panel 1 is fixed on the top surface of the electrical control box 24 by bolt fastening), and a winding conduction detection universal plate 25 is fixed in the electrical control box 24 by bolt fastening. The pin docking mechanism 14 is connected to the winding conduction detection universal plate 25, and the pins of the high-frequency transformer are connected to the winding conduction detection universal plate 25 through the pin docking mechanism 14, and the winding conduction detection is detected through the winding conduction detection. The universal plate 25 detects whether the winding on the high-frequency transformer is turned on; an upwardly extending support mechanism 7 is installed on the installation panel 1, and a lifting mechanism 2 is arranged on the support mechanism 7. A pressing plate 31 is arranged at the bottom of the lifting mechanism 2, and the pressing plate 31 is located directly above the pin docking mechanism 14. The winding is pressed by the pressing plate 31, so that the high-frequency transformer is pressed on the pin docking mechanism 14, so as to avoid the pin and the pin docking mechanism 14 being misaligned due to the movement of the high-frequency transformer during detection, so as to avoid misdetection; the pin docking mechanism 14 includes a pin plate 15, a product table 16 and a magnetic core mechanism 34, wherein the pin plate is fixed on the installation panel 1 by bolts. 15, a product table 16 is arranged above the needle plate 15, a column is arranged between the product table 16 and the mounting panel 1 (the two ends of the column are installed between the product table 16 and the mounting panel 1 by bolt fastening, and the product table 16 is supported by the column), a plurality of docking holes 17 are opened on the product table 16, a plurality of vertically arranged pin probes 18 are installed on the needle plate 15 by bolt fastening, the top of the pin probe 18 extends into the docking hole 17, an insulating sleeve 22 is arranged between the needle plate 15 and the product table 16 and the insulating sleeve 22 is sleeved on the probe, the top of the pin probe 18 extends into the docking hole 17, and at the same time, the probe portion between the product table 16 and the needle plate 15 The insulating sleeve 22 made of ceramic is separately sleeved, so that the probes are isolated and insulated from each other, so that other electrical components can be prevented from being punctured due to high-voltage discharge of the probes during the withstand voltage test; the needle plate 15 and the product table 16 of the present application are both made of insulating materials (ceramic can be used), and the multiple docking holes 17 mentioned in the present application are divided into multiple groups, so that multiple high-frequency transformers can be placed on the product table 16, so that multiple high-frequency transformers can be tested, and the probe of the present application is located in the docking hole 17, so that the probe can be protected and isolated, so as to avoid the probe being damaged during use, or puncturing other electrical components during high-voltage discharge;When testing, insert the pin of the high-frequency transformer into the docking hole 17 and dock with the probe, and press the high-frequency transformer on the product table 16 by pressing the pressing plate 31, so as to avoid the state where the probe and the pin are separated due to vibration during the detection process, so as to detect the conduction state of the high-frequency transformer. ;

[0028] A product winding terminal 26, a coil conduction high-voltage relay 27, a test status indicator light 28, and a winding switching switch 29 are provided on the winding conduction detection universal board 25. The winding conduction detection universal board 25 is a PCB board. Four groups of product terminals are fixed on the winding conduction detection universal board 25 by glue, so that four high-frequency transformers can be detected at the same time. Each group of product terminals has four terminals, so that whether the high-frequency transformers of the four windings are turned on can be tested. Each product terminal is divided into two interfaces, which are a positive interface and a negative interface respectively. The positive interface and the negative interface of each group of product terminals are respectively connected to the pin probe 18 and turned on. Multiple pairs of coil conduction high-voltage relays 27 are installed on the winding conduction detection universal board 25 by glue, and each product terminal is connected to the coil conduction high-voltage relay 27 (the positive interface and the negative interface of each product terminal are respectively connected to the output end of the coil conduction high-voltage relay 27 through a wire, and each coil conduction high-voltage relay 27 is divided into a port and a high The high-voltage input terminal, the low-voltage input terminal and the output terminal are separated by the switching circuit of the wire package conduction high-voltage relay 27. When a conduction test is required, it is only necessary to connect the winding of the high-frequency transformer to the low-voltage circuit, and the low-voltage input terminal and the output terminal can be connected by the wire package conduction high-voltage relay 27. When a withstand voltage test is required, the high-voltage input terminal and the output terminal of the wire package conduction high-voltage relay 27 can be connected). A test status indicator 28 is connected in series with each product terminal and the wire package conduction high-voltage relay 27 (wherein one end of the test status indicator 28 is connected in series with a 24V power supply and a resistor, and the other end of the test status indicator 28 is connected and communicated with the low-voltage interface of the wire package conduction high-voltage relay 27). The test status indicator 28 is used to display whether the winding of the high-frequency transformer is turned on, that is, when the winding can pass current, the test status indicator 28 (diode) lights up, and when the winding is disconnected and cannot pass current, the test status indicator 28 will not light up;When making connections, the positive terminal interface of the product is connected to the positive pin of the winding, the negative terminal interface of the product is connected to the negative pin of the winding, the positive terminal interface of the product is connected to the output terminal of the wire package conduction high-voltage relay 27, the negative terminal interface of the product is connected to the output terminal of another wire package conduction high-voltage relay 27, the low-voltage input terminal of the wire package conduction high-voltage relay 27 is connected to the output terminal of the switching switch 29 (only the wire package conduction high-voltage relay connected to the positive terminal interface of the product is connected to the switch 29), the low-voltage current is transmitted to the low-voltage input terminal of the wire package conduction high-voltage relay 27 through the switching switch 29, the low-voltage current is input from the low-voltage interface of the wire package conduction high-voltage relay 27, the low-voltage current is output from the output terminal to the positive pole of the high-frequency transformer through the wire package conduction high-voltage relay 27, and the low-voltage The current flows out from the negative pole of the high-frequency transformer and enters another high-voltage coil conduction relay 27 through the output end of the coil conduction high-voltage relay 27, and then outputs to the outside through the low-voltage interface of the coil conduction high-voltage relay 27, so that multiple high-frequency transformers are connected in series with the coil conduction high-voltage relay 27. When one of the windings is disconnected, the circuit is disconnected, so that the test status indicator 28 goes out, so that there is no conduction between the multiple windings, and then the damaged windings are promptly eliminated; the present application can detect multiple high-frequency transformers at the same time, so that each product terminal connected to the high-frequency transformer is connected to the coil conduction high-voltage relay 27, and the present application passes low-voltage current into different coil conduction high-voltage relays 27 through the switching switch 29, so as to detect high-frequency transformers with different numbers of windings. ;

[0029] The switching switch 29 is an automatic transfer switch. The input end of the switching switch 29 is connected to a low-voltage power supply (24V), that is, the input end of the switching switch 29 is connected to the low-voltage power supply. The output end of the switching switch 29 is respectively connected to a plurality of wire package conduction high-voltage relays 27 (the wire package conduction high-voltage relay 27 with the positive terminal interface of the product is connected to the output end of the switching switch 29). The switching switch is used to pass a low-voltage current into the low-voltage input end of the wire package conduction high-voltage relay 27. The switching switch is connected to the electrical control box 24, and the switching switch is controlled by the electrical control box 24, so that different types of high-frequency transformers (mainly different numbers of windings) can be detected; each wire package conduction high-voltage relay 27 is respectively connected to the electrical control box 24 (that is, the control end of the wire package conduction high-voltage relay 27 is connected to the electrical control box 24, and the wire package conduction high-voltage relay 27 is controlled to switch the high-voltage / low-voltage circuit through the electrical controller). The switching switch is connected to the electrical control box 24. The control box 24 is connected through a wire, and the electrical control box 24 controls the on and off of the coil conduction high-voltage relay 27. At the same time, the electrical control box 24 controls the switching circuit of the switching switch, and controls the on and off of the coil conduction high-voltage relay 27 and the switching switch to control one of the coil conduction high-voltage relays 27 to be powered according to the number of windings on the high-frequency transformer; for example: when it is necessary to detect a three-winding transformer, the output end of the sixth coil conduction high-voltage relay 27 is controlled to be connected to the low-voltage interface, and a low-voltage current is input to the low-voltage interface of the sixth coil conduction high-voltage relay 27, and the negative pressure interface of the first coil conduction high-voltage relay 27 is grounded, so that the three windings are connected in series, and the conduction detection of the three-winding transformer is performed. Similarly, when the high-frequency transformer has two windings, the output end of the fourth coil conduction high-voltage relay 27 is controlled to be connected to the low-voltage interface, and a low-voltage current is input to the low-voltage interface of the fourth coil conduction high-voltage relay 27, so as to realize the conduction detection.

[0030] The support mechanism 7 is installed on the installation panel 1. The support mechanism 7 includes a support plate 8 and a reinforcement plate 9. The support plate 8 is vertically installed on the installation plate by bolt fastening. The bottom of the support plate 8 is installed on the installation plate by bolt fastening. A reinforcement plate 9 is installed on the back of the support plate 8 by bolt fastening (the reinforcement plate 9 is a triangular plate, and the right-angle plates of the triangular plate are respectively against the support plate 8 and the installation panel 1, and the reinforcement plate 9 is installed on the support plate 8 and the installation panel 1 by bolts). A lifting mechanism 2 is installed on the front of the support mechanism 7. The lifting mechanism 2 includes a linear guide rail 3, a slider 4 and a lifting electromagnetic push rod 5. Two vertically arranged guide rails are installed on the front of the support plate 8 by bolt fastening. A slider 4 that is lifted and lowered on the linear guide rail 3 is clamped on the guide rail. A lifting plate 6 is installed at the front end of the two sliders 4 by bolt fastening. A pressing plate 31 is arranged below the lifting plate 6. A pressure plate 31 is arranged between the lifting plate 6 and the support plate 8 above. A lifting electromagnetic push rod 5 is installed in a bolt-fastened manner (the cylinder body of the lifting electromagnetic push rod 5 is installed on the support plate 8 by bolt-fastening, and the piston rod of the lifting electromagnetic push rod 5 is connected to the lifting plate 6 by bolt-fastening, and the lifting and retraction of the lifting electromagnetic push rod 5 are used to realize the lifting and retraction of the lifting plate 6), and the lifting and retraction of the lifting plate 6 are realized by the lifting electromagnetic push rod 5. A buffer assembly 10 is arranged between the lifting plate 6 and the pressing plate 31, and the buffer assembly 10 includes a guide rod 11 and a spring 12. A plurality of vertically arranged guide rods 11 are installed on the top of the pressing plate 31 by bolt-fastening. The top of the guide rod 11 passes through the lifting plate 6, and a spring 12 is sleeved on the guide rod 11 and the spring 12 is located between the lifting plate 6 and the pressing plate 31. A limiting block 13 is fixed on the top of the guide rod 11 by welding to prevent the guide rod 11 from separating from the lifting plate 6, so that the high-frequency transformer is pressed on the product table 16, and the buffer assembly 10 is arranged to prevent the high-frequency transformer from being crushed.

[0031] A protective cover 32 is installed at the bottom of the pressure plate 31 by bolt fastening. The protective cover 32 is C-shaped, and the top of the protective cover 32 is installed on the bottom surface of the pressure plate 31. The end of the protective cover 32 facing the support frame is a notch, and the bottom plate is located in the protective cover 32. When the pressure plate 31 contacts the top of the high-frequency transformer, the bottom of the protective cover 32 contacts the top surface of the installation panel 1, so that when performing a withstand voltage test, the staff is prevented from contacting the high-frequency transformer.

[0032] A shunt is connected in series at the front end of each test status indicator light 28, and the shunt is connected to the electrical control box 24 through a wire, and the electrical control box 24 is connected to the lifting mechanism 2 through a wire. When the test status indicator light 28 is off (the shunt detects that there is no current passing), the electrical control box 24 controls the lifting mechanism 2 to lock, so that it cannot rise and reset; a key switch 33 is installed on the top surface of the installation panel 1 by bolt fastening, and the key switch 33 is connected to the input end of the electrical control box 24. When the key switch 33 is triggered, the lifting mechanism 2 is unlocked and rises and resets, so that when poor conduction occurs, the machine can be locked to prevent errors and wait for QE professional quality personnel to unlock it.

[0033] A magnetic core mechanism 34 is arranged on the installation plane, and the magnetic core mechanism 34 includes a probe seat 35, a magnetic core probe 36 and a translation assembly 37. A translation assembly 37 is arranged on the installation plane (the translation assembly 37 is a translation cylinder, and the cylinder body of the translation cylinder is installed on the installation panel 1 by bolts, and the probe seat 35 is installed on the piston rod of the translation assembly 37 by bolt-fastening (the probe seat 35 is an insulating ceramic plate)), a probe seat 35 facing the needle plate 15 is installed on the piston rod of the translation assembly 37, and the magnetic core probe 36 is installed on the probe seat 35 by bolt-fastening, and a plurality of magnetic core probes 36 are installed on the probe seat 35, and each magnetic core probe 36 is connected to the magnetic core of the transformer in turn. When performing a withstand voltage test, the magnetic core probe 36 needs to be in contact with the magnetic core of the transformer, and the magnetic core of the transformer is grounded through the magnetic core probe 36.

[0034] The probe includes a contact head 19 and an adjusting rod 20. The contact head 19 is installed on the top of the adjusting rod 20. A threaded sleeve 21 is installed on the top of the needle plate 15. The threaded sleeve 21 is connected to the winding conduction detection universal plate 25 through a wire. The adjusting rod 20 extends into the threaded sleeve 21. A cross mouth is provided on the top of the contact head 19, so that the height of the contact head 19 can be adjusted, which is convenient for application to high-frequency transformers with multiple groups of pins of different lengths. The height of the pin probe 18 can be adjusted, which is convenient for adjusting the length of the probe according to the length of the pin, and which is convenient for adjusting the height of the pin probe 18 according to the length of the pin.

[0035] A 19053 multi-channel withstand voltage tester 38 is embedded in the electrical control box 24. The multiple channels of the 19053 multi-channel withstand voltage tester 38 are connected to the high-voltage input interface of each coil conduction high-voltage relay 27 through wires, so that the high-voltage withstand voltage test can be completed. The high and low voltages are switched by the coil conduction high-voltage relay 27, so that the conduction detection and withstand voltage detection of the high-frequency transformer can be completed.

[0036] A PLC controller 39 is installed in the electrical control box 24. The above-mentioned wire pack conduction high-voltage relay 27, switching switch 29, and lifting mechanism 2 are all connected to the output port of the PLC controller 39. The PLC controller 39 controls the conduction of the wire pack conduction high-voltage relay 27, the switching route of the switching switch 29, and whether the lifting mechanism 2 is locked. The shunt and the key switch 33 are connected to the input end of the PLC controller 39. The shunt transmits the signal of whether the test status indicator light 28 is on and the unlocking signal of the key switch 33 to the PLC controller 39.

Claims

1. A high-frequency transformer withstand voltage detection device, comprising an installation panel, a lifting mechanism, a support mechanism, a pin docking mechanism and an electrical control box, wherein a pin docking mechanism is arranged above the installation panel, an electrical control box is arranged at the bottom of the installation panel, a winding conduction detection universal board is arranged in the electrical control box, and the pin docking mechanism is connected to the winding conduction detection universal board; an upwardly extending support mechanism is installed on the installation panel, a lifting mechanism is arranged on the support mechanism, a pressing plate is arranged at the bottom of the lifting mechanism and the pressing plate is located directly above the pin docking mechanism, and the winding is pressed by the pressing plate; the characteristic is that, The pin docking mechanism includes a needle plate, a product table and a magnetic core matching mechanism, wherein a needle plate is arranged on the mounting panel, a product table is arranged above the needle plate, a column is arranged between the product table and the mounting panel, a plurality of docking holes are opened on the product table, a plurality of vertically arranged pin probes are installed on the needle plate, the tops of the pin probes extend into the docking holes, an insulating sleeve is arranged between the needle plate and the product table and the insulating sleeve is sleeved on the probes.

2. The high-frequency transformer withstand voltage detection device according to claim 1, characterized in that: Product winding terminals, coil conduction high-voltage relays, test status indicator lights, and winding switching switches are arranged on the general board for winding conduction detection, wherein a plurality of groups of product terminals are arranged on the general board for winding conduction detection, each group of product terminals is respectively connected to pin probes, a plurality of pairs of coil conduction high-voltage relays are arranged on the general board for winding conduction detection, each group of product terminals is connected to the coil conduction high-voltage relay, the positive terminal and the negative terminal of each product terminal are respectively connected to the coil conduction high-voltage relay, a test status indicator light is connected in series between each group of product terminals and the coil conduction high-voltage relay, and whether the winding of the high-frequency transformer is conductive is displayed by the test status indicator light.

3. The high-frequency transformer withstand voltage detection device according to claim 2, characterized in that: The low-voltage input interface of the wire pack conduction high-voltage relay is connected to the switching switch, and the other end of the switching switch is connected to the low-voltage power supply. The switching switch is used to input low-voltage current to the wire pack conduction high-voltage relay; each wire pack conduction high-voltage relay is connected to the electrical control box respectively, and the switching switch is connected to the electrical control box. The electrical control box controls the conduction and disconnection of the wire pack conduction high-voltage relay, and the electrical control box controls the switching circuit of the switching switch.

4. The high-frequency transformer withstand voltage detection device according to claim 3, characterized in that: The supporting mechanism is installed on the mounting panel, and the supporting mechanism includes a supporting plate and a reinforcing plate. The supporting plate is vertically installed on the mounting flat plate, and a reinforcing plate is installed on the back of the supporting plate. A lifting mechanism is installed on the supporting mechanism, and the lifting mechanism includes a linear guide rail, a slider and a lifting electromagnetic push rod. A vertically arranged guide rail is installed on the front of the supporting plate, and a slider that is lifted and lowered on the linear guide rail is clamped on the guide rail. A lifting plate is fixed on the slider, and a pressing plate is arranged below the lifting plate. A lifting electromagnetic push rod is arranged above the lifting plate and between the supporting plate, and the lifting and lowering of the lifting plate is realized by the lifting electromagnetic push rod; a buffer assembly is arranged between the lifting plate and the pressing plate, and the buffer assembly includes a guide rod and a spring. A plurality of vertically arranged guide rods are arranged on the top of the pressing plate, and the top of the guide rod passes through the lifting plate. A spring is sleeved on the guide rod and the spring is located between the lifting plate and the pressing plate, and a limiting block is fixed on the top of the guide rod to prevent the guide rod from separating from the lifting plate.

5. The high-frequency transformer withstand voltage detection device according to claim 4, characterized in that: A protective cover is arranged on the pressing plate, the protective cover is C-shaped, the top of the protective cover is installed on the pressing plate, the end of the protective cover facing the support frame is a notch, the bottom plate is located in the protective cover, when the pressing plate contacts the top of the high-frequency transformer, the bottom of the protective cover contacts the top surface of the installation panel.

6. The high-frequency transformer withstand voltage detection device according to claim 5, characterized in that: Each test status indicator light is connected to the input end of the electrical control box, and the output end of the controller is connected to the lifting mechanism. When the test status indicator light is off, the lifting mechanism does not work. A key switch is provided on the top surface of the installation panel, and the key switch is connected to the input end of the controller. When the key switch is triggered, the lifting mechanism rises and resets.

7. The high-frequency transformer withstand voltage detection device according to claim 6, characterized in that: A magnetic core alignment mechanism is arranged on the installation plane, and the magnetic core alignment mechanism includes a probe seat, a magnetic core probe and a translation assembly. A translation assembly is arranged on the installation plane, and a probe seat facing the needle plate is installed on the piston rod of the translation assembly. Multiple magnetic core probes are installed on the probe seat, and each magnetic core probe is connected to the magnetic core of the transformer in turn.

8. The high-frequency transformer withstand voltage detection device according to claim 7, characterized in that: The probe includes a contact head and an adjusting rod. The contact head is installed on the top of the adjusting rod. A threaded sleeve is installed on the top of the needle plate. The threaded sleeve is connected to the universal board for winding conduction detection. The adjusting rod extends into the threaded sleeve. A cross mouth is set on the top of the contact head.

9. The high-frequency transformer withstand voltage detection device according to claim 8, characterized in that: A 19053 multi-channel withstand voltage tester is arranged in the electrical control box, and the multiple channels of the 19053 multi-channel withstand voltage tester are respectively connected to the high-voltage input interface of each coil conduction high-voltage relay.

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