Device for discharging independent or universal meter expansion capacitor

Abstract

The utility model discloses an independent or universal meter expansion capacitor discharge device, and particularly relates to the technical field of electrical maintenance, which comprises a discharge part and a universal meter main body, and the discharge part is positioned on one side of the universal meter main body. The discharging part comprises a PCB, a plurality of chip resistors, a plurality of chip capacitors, a plurality of chip triodes, a plurality of chip diodes, an LED lamp bead, a rectifier bridge, an MOS tube and two copper bases. The chip resistors, the chip capacitors, the chip triodes, the chip diodes, the LED lamp bead, the rectifier bridge, the MOS tube and the two copper bases are all welded to the PCB. By arranging a plurality of chip resistors and MOS tubes, a small amount of electric energy stored in the capacitor can be consumed, direct short-circuit capacitor spark discharge is replaced, the safety performance is high, meanwhile, the capacitor can be independently used, the capacitor can be conveniently matched with a universal meter for use, and the application range is wide.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical maintenance, and more specifically to a device for discharging an independent or multimeter extended capacitor. Background Art

[0002] When producing, testing, and repairing electronic products, especially when developing and repairing power boards, there must be capacitors on the motherboard. When the capacitor is powered on, electricity will be stored inside, and it will be automatically discharged after a period of time. Some high-voltage capacitors have a very high voltage. When they are not discharged, maintenance personnel will cause electric shock hazards if they touch them directly. At the same time, the arc will damage other components and cause certain losses.

[0003] The utility model with announcement number CN216562776U discloses a capacitor discharge rod. The discharge rod comprises an indicator light strip, a conductive contact and an insulating rod. The discharge rod can contact a container or an electronic component with charge through the conductive contact, and the state of charge in the container or the electronic component is reflected by the on and off of the indicator light strip arranged on the insulating rod, thereby avoiding accidents of injury caused by residual charge in the capacitor or the electronic component, and improving the discharge efficiency of the power component that needs to be discharged.

[0004] When the above patent is in use, when there is residual charge in the capacitor, or the charge of the capacitor is not completely discharged, while the conductive contact contacts the capacitor substrate, the permanent magnet in the conductive contact slides along the slide groove in the conductive rod. However, it can only be used independently and is not convenient to use with a multimeter, so its scope of application is small. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides an independent or multimeter extended capacitor discharge device, aiming to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A device for discharging an independent or multimeter extended capacitor comprises a discharge part and a multimeter body, wherein the discharge part is located on one side of the multimeter body, the discharge part comprises a PCB circuit board, a plurality of chip resistors, a plurality of chip capacitors, a plurality of chip triodes, a plurality of chip diodes, an LED lamp bead, a rectifier bridge, a MOS tube and two copper seats, the plurality of chip resistors, a plurality of chip capacitors, a plurality of chip triodes, a plurality of chip diodes, an LED lamp bead, a rectifier bridge, a MOS tube and two copper seats are all welded to the PCB circuit board, bolts are movably provided on the two copper seats, and an independent component and an extended component are provided on the PCB circuit board.

[0008] Furthermore, the independent component includes two first copper tubes, two second copper tubes and two copper blocks, one end of the two second copper tubes is respectively welded to the two copper blocks, and the other ends of the two second copper tubes extend into the interior of the two first copper tubes respectively.

[0009] Furthermore, springs are movably provided inside the two first copper tubes, and one end of the two springs is respectively in contact with the two second copper tubes.

[0010] It can be seen that in the above technical solution, the copper block drives the second copper tube to move, thereby driving the spring to compress, making it convenient to adjust the position of the copper block.

[0011] Furthermore, a first copper ring is welded to one end of each of the two first copper tubes, and the two first copper rings are fixed to the two copper seats respectively by two bolts.

[0012] It can be seen that in the above technical solution, the first copper ring is placed on the copper seat, and the bolt is rotated and extended into the copper seat, so that the first copper ring is fixed to the copper seat, and then the first copper tube is fixed to the PCB circuit board, and the other first copper tube is installed in the same way.

[0013] Furthermore, the expansion group is two copper sheets, and one end of the two copper sheets is in contact with the multimeter body.

[0014] Furthermore, a second copper ring is welded to one side of the two copper sheets, and the two second copper rings are fixed to the two copper seats respectively by two bolts.

[0015] It can be seen that in the above technical solution, the second copper ring is placed on the first copper ring, and the first copper ring is fixed to the copper seat by bolts, so that the copper sheet is fixed to the PCB circuit board.

[0016] Furthermore, two double-sided adhesive tapes are fixedly connected to the bottom of the PCB circuit board.

[0017] It can be seen that in the above technical solution, by providing two double-sided adhesive tapes, it is convenient to adhere the PCB circuit board to the multimeter body, which is convenient for expanded use and effectively prevents the PCB circuit board from being lost.

[0018] Technical effects and advantages of the utility model:

[0019] The utility model presses two copper blocks on the positive and negative pins of the capacitor respectively, so that the LED lamp bead is lit, and the LED lamp bead gradually dims after three seconds or ten seconds, indicating that the discharge is completed. The two copper pieces are pressed between the test leads and the pen holder of the multimeter body, and the test leads of the multimeter body are directly pressed on the positive and negative pins of the capacitor respectively. By arranging multiple chip resistors and MOS tubes, a small amount of electric energy stored in the capacitor can be consumed, instead of directly short-circuiting the capacitor for spark discharge. The utility model has high safety performance, can be used independently, and is also convenient to be used in combination with a multimeter, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0021] Figure 1 It is a schematic diagram of the overall structure of an independent or multimeter extended capacitor discharge device of the utility model;

[0022] Figure 2 It is a schematic diagram of the assembly structure of the discharge part and the first copper tube of an independent or multimeter extended capacitor discharge device of the utility model;

[0023] Figure 3 This is a schematic diagram of the PCB circuit board and double-sided adhesive assembly structure of an independent or multimeter extended capacitor discharge device of the utility model;

[0024] Figure 4 It is a schematic diagram of the first copper tube section and spring assembly structure of an independent or multimeter extended capacitor discharge device of the utility model;

[0025] Figure 5 The utility model is a schematic diagram of the assembly structure of a copper sheet and a second copper ring of an independent or multimeter extended capacitor discharge device.

[0026] In the figure: 1. discharge part; 2. copper sheet; 3. multimeter body; 4. bolt; 5. first copper tube; 6. second copper tube; 7. copper block; 8. double-sided tape; 9. spring; 10. first copper ring; 11. second copper ring; 101. PCB circuit board; 102. chip resistor; 103. chip capacitor; 104. chip triode; 105. chip diode; 106. LED lamp bead; 107. rectifier bridge; 108. MOS tube; 109. copper seat. DETAILED DESCRIPTION

[0027] The following is a specific embodiment of the present invention. People familiar with the technology can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. Obviously, the described embodiment is a part of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Refer to the instruction manual Figure 1-5 , a device for discharging an independent or multimeter extended capacitor in this embodiment includes a discharge part 1 and a multimeter body 3, and the discharge part 1 is located on one side of the multimeter body 3, the discharge part 1 includes a PCB circuit board 101, multiple chip resistors 102, multiple chip capacitors 103, multiple chip triodes 104, multiple chip diodes 105, LED lamp beads 106, a rectifier bridge 107, a MOS tube 108 and two copper seats 109, multiple chip resistors 102, multiple chip capacitors 103, multiple chip triodes 104, multiple chip diodes 105, LED lamp beads 106, a rectifier bridge 107, a MOS tube 108 and two copper seats 109 are all welded to the PCB circuit board 101, bolts 4 are movably provided on the two copper seats 109, and independent components and extended components are provided on the PCB circuit board 101.

[0029] Furthermore, the independent component includes two first copper tubes 5, two second copper tubes 6 and two copper blocks 7. One ends of the two second copper tubes 6 are respectively welded to the two copper blocks 7, and the other ends of the two second copper tubes 6 extend into the two first copper tubes 5 respectively. Springs 9 are movably provided inside the two first copper tubes 5, and one ends of the two springs 9 are respectively in contact with the two second copper tubes 6. The copper blocks 7 drive the second copper tubes 6 to move, thereby driving the springs 9 to compress, which facilitates the adjustment of the position of the copper blocks 7. One ends of the two first copper tubes 5 are welded with first copper rings 10, and the two first copper rings 10 are fixed to the two copper seats 109 by two bolts 4 respectively.

[0030] Furthermore, the expansion group consists of two copper sheets 2, and one end of the two copper sheets 2 is in contact with the multimeter body 3, a second copper ring 11 is welded on one side of the two copper sheets 2, and the two second copper rings 11 are fixed to the two copper seats 109 by two bolts 4 respectively.

[0031] Furthermore, two double-sided adhesive tapes 8 are fixedly connected to the bottom of the PCB circuit board 101. By providing two double-sided adhesive tapes 8, the PCB circuit board 101 can be conveniently adhered to the multimeter body 3, which is convenient for expanded use and effectively prevents the PCB circuit board 101 from being lost.

[0032] The method of using this embodiment is as follows:

[0033] When used independently;

[0034] Step 1: Place the first copper ring 10 on the copper seat 109, rotate the bolt 4 and extend it into the copper seat 109, so that the first copper ring 10 is fixed to the copper seat 109, and then the first copper tube 5 is fixed to the PCB circuit board 101, and the other first copper tube 5 is installed in the same way;

[0035] Step 2: Press the two copper blocks 7 onto the positive and negative pins of the capacitor respectively, without distinguishing between the positive and negative poles. The two copper blocks 7 can randomly contact the positive and negative pins, so that the LED lamp bead 106 is lit, and after three or ten seconds, the LED lamp bead 106 gradually dims, indicating that the discharge is completed.

[0036] Connect with multimeter for use;

[0037] Step 1: Place the second copper ring 11 on the first copper ring 10, and fix the first copper ring 10 to the copper seat 109 through the bolt 4, so that the copper sheet 2 is fixed to the PCB circuit board 101, and press the two copper sheets 2 between the test leads and the pen holder of the multimeter body 3;

[0038] Step 2: Press the test leads of the multimeter body 3 directly to the positive and negative pins of the capacitor respectively, without distinguishing between the positive and negative poles. The two test leads can randomly contact the positive and negative pins, so that the LED lamp bead 106 is lit, and after three or ten seconds, the LED lamp bead 106 gradually dims, indicating that the discharge is completed;

[0039] Step 3: If you need to observe the voltage of the capacitor during discharge, you can adjust the multimeter body 3 to the DC voltage position before the second step, and read the voltage change value of the capacitor during discharge through the display of the multimeter body 3.

[0040] By setting a plurality of chip resistors 102 and MOS tubes 108, a small amount of electric energy stored in the capacitor can be consumed, instead of directly short-circuiting the capacitor to spark discharge, with high safety performance. At the same time, it can be used independently and is also convenient to be used with a multimeter, with a wide range of applications. By setting a rectifier bridge 107, there is no need to consider the positive and negative poles of the capacitor when the discharge device contacts the capacitor, and it is easy to use.

[0041] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited and can be determined using conventional equipment. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the prior art and will not be described here.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for discharging an independent or multimeter extended capacitor, comprising a discharge portion (1) and a multimeter body (3), wherein the discharge portion (1) is located on one side of the multimeter body (3), characterized in that: The discharge part (1) comprises a PCB circuit board (101), a plurality of chip resistors (102), a plurality of chip capacitors (103), a plurality of chip triodes (104), a plurality of chip diodes (105), LED lamp beads (106), a rectifier bridge (107), a MOS tube (108) and two copper seats (109); the plurality of chip resistors (102), the plurality of chip capacitors (103), the plurality of chip triodes (104), the plurality of chip diodes (105), the LED lamp beads (106), the rectifier bridge (107), the MOS tube (108) and the two copper seats (109) are all welded to the PCB circuit board (101); bolts (4) are movably provided on the two copper seats (109); and the PCB circuit board (101) is provided with independent components and expansion components.

2. A device for discharging an independent or multimeter-extended capacitor according to claim 1, characterized in that: The independent component comprises two first copper tubes (5), two second copper tubes (6) and two copper blocks (7), one end of the two second copper tubes (6) being respectively welded to the two copper blocks (7), and the other ends of the two second copper tubes (6) respectively extending into the interior of the two first copper tubes (5).

3. A device for discharging an independent or multimeter-extended capacitor according to claim 2, characterized in that: A spring (9) is movably provided inside each of the two first copper tubes (5), and one end of each of the two springs (9) is in contact with each of the two second copper tubes (6).

4. A device for discharging an independent or multimeter-extended capacitor according to claim 2, characterized in that: A first copper ring (10) is welded to one end of each of the two first copper tubes (5), and the two first copper rings (10) are fixed to the two copper seats (109) via two bolts (4) respectively.

5. The device for discharging a capacitor independently or for a multimeter according to claim 1, characterized in that: The expansion group is composed of two copper sheets (2), and one end of the two copper sheets (2) is in contact with the multimeter body (3).

6. A device for discharging an independent or multimeter-extended capacitor according to claim 5, characterized in that: A second copper ring (11) is welded to one side of each of the two copper sheets (2), and the two second copper rings (11) are fixed to the two copper seats (109) via two bolts (4) respectively.

7. A device for discharging a capacitor independently or for a multimeter according to claim 1, characterized in that: The bottom of the PCB circuit board (101) is fixedly connected with two double-sided adhesive tapes (8).

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