Capacitor discharge protection device
By designing a capacitor discharge protection device, using structures such as rotating rotary rotary switch resistor wire and L-shaped metal shrapnel, the problem of incandescent lamps being easily burned during discharge of capacitors in the prior art is solved, and effective protection of capacitors and extension of equipment life is achieved.
Patent Information
- Application Number
- CN202421935574.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-08-12
AI Technical Summary
In the prior art, the use of a fixed light bulb when the capacitor is discharged may cause the incandescent lamp to burn when the power is too high, and the capacitor cannot be effectively protected.
A capacitor discharge protection device is designed to switch the resistor wire by rotating the rotor to form an appropriate circuit connection to ensure that the incandescent lamp will not be damaged by overload and ensure the stable connection of the resistor wire through structures such as L-shaped metal shrapnel and square plate.
It realizes that the appropriate resistor wire is selected in real time according to the power of different capacitors, avoid overload and damage of incandescent lamps and extend the service life of the equipment.
Smart Images
Figure CN222966725U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of capacitor discharge, in particular to a capacitor discharge protection device. Background Art
[0002] With the continuous development of modern industry and power systems, capacitors, as an important component of power systems, are widely used in fields such as reactive power compensation, voltage stabilization, filtering and power electronics. The normal operation of capacitors is crucial to ensure the stability and reliability of power systems. In the actual application of capacitors, capacitors often need to be discharged during maintenance.
[0003] In the prior art, when discharging a capacitor, a light bulb of appropriate power is generally connected to both ends of the capacitor for discharge. The light bulb consumes the electrical energy of the capacitor and emits light until the capacitor is fully discharged. However, when discharging capacitors of different models, when the power is too large, the fixed light bulb may be at risk of burning out. For this reason, a capacitor discharge protection device is designed. Utility Model Content
[0004] The utility model aims to solve the shortcomings in the prior art and proposes a capacitor discharge protection device.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A capacitor discharge protection device comprises a shell, wherein both sides of the bottom inner side of the shell are fixedly connected with fixed blocks, a same rotating rod is rotatably sleeved between the two fixed blocks, a square plate is fixedly sleeved on the circumferential surface of the rotating rod located between the two fixed blocks, grooves are provided in the middle of the four sides of the two square plates, a metal pressing block is screwed on each of the grooves by bolts, a same resistance wire is fixedly installed between the two metal pressing blocks on the same side, an arc-shaped slot adapted to the resistance wire is provided on each of the metal pressing blocks, and the resistance wire can be replaced by disassembling the metal pressing blocks, which is convenient for maintenance and overhaul, a turntable is fixedly connected to one end of the rotating rod, a block is fixedly connected to the other end of the rotating rod, and an inspection door is provided on the shell near the two square plates.
[0007] As a further solution of the utility model, a U-shaped frame is fixedly connected to the bottom inner side of the shell near the square block, a square rod is slidingly sleeved on the top of the U-shaped frame, a square hole matched with the square rod is opened on the top of the U-shaped frame, a protrusion is fixedly connected to the bottom of the square rod, a push block is fixedly connected to the top of the square rod, and the push block is matched with the square block, and a spring is sleeved on the bottom of the square rod at the push block. Through the arrangement of the square block, the push block and the spring, the rotating rod is in a stable state after each rotation of ninety degrees, and the rotating rod will not shake.
[0008] As a further solution of the utility model, L-shaped metal springs are fixedly connected to the inner side of the shell near the two square plates, and each of the L-shaped metal springs is adapted to the adjacent metal pressure blocks. The setting of the L-shaped metal springs ensures that the resistance wire on the top can work normally.
[0009] As a further solution of the utility model, a mounting seat is fixedly connected to the inner side of the shell, a mounting groove is provided on the top of the mounting seat, an incandescent lamp is fixedly connected in the mounting groove, and by observing the state of the incandescent lamp, the user can determine whether the capacitor discharge is complete.
[0010] As a further solution of the utility model, a panel is fixedly connected to the top of the shell, an observation window is opened on the top of the panel, and the observation window is adapted to the mounting seat, transparent glass is fixedly installed on the observation window, and a strip hole is also opened on the top of the panel, and the strip hole is adapted to the turntable.
[0011] As a further solution of the utility model, a switch is fixedly installed on the top of the panel, two enameled wires are fixedly connected to one side of the outer wall of the shell, and a metal probe with an insulating layer is fixedly connected to the other end of each enameled wire.
[0012] As a further solution of the utility model, one of the insulating metal probes is electrically connected to one of the L-shaped metal springs through a wire, and the other L-shaped metal spring is electrically connected to a switch, an incandescent lamp and another insulating metal probe in sequence through a wire.
[0013] The beneficial effects of the utility model are:
[0014] The utility model adopts L-shaped metal spring pieces, square plates, grooves, metal pressing blocks and resistance wire technical means, and the resistance wire is switched by rotating the turntable, so that the resistance wire located at the top can be connected in series with the incandescent lamp to form a path, which effectively solves the problem raised in the background technology, and then realizes that according to the power size of different capacitors, the appropriate resistance wire can be selected in real time, so that the resistance wire, the incandescent lamp and the capacitor are connected, thereby protecting the incandescent lamp, avoiding overload damage of the incandescent lamp, and extending the service life of the equipment.
[0015] The utility model provides a square block, an L-shaped metal spring sheet, a U-shaped frame, a square rod, a push block and a spring, so that when the rotating rod rotates, it can be in a stable state after rotating ninety degrees each time, and will not shake excessively, thereby ensuring stable connection of the resistance wire. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the overall structure of the capacitor discharge protection device proposed by the utility model;
[0017] Figure 2 Schematic cross-sectional structure diagram of the housing of the capacitor discharge protection device proposed by the present utility model;
[0018] Figure 3 Schematic diagram of the partial internal structure of the housing of the capacitor discharge protection device proposed by the present utility model;
[0019] Figure 4 of the capacitor discharge protection device proposed by the present utility model Figure 3 Schematic enlarged structure diagram at position A;
[0020] Figure 5 Schematic structure diagram at the square plate of the capacitor discharge protection device proposed by the present utility model;
[0021] Figure 6 Schematic circuit connection diagram of the capacitor discharge protection device proposed by the present utility model.
[0022] In the figure: 1. Housing; 2. Maintenance door; 3. Enameled wire; 301. Metal probe with insulation layer; 4. Panel; 401. Observation window; 402. Switch; 5. Turntable; 6. Mounting seat; 601. Incandescent lamp; 7. Fixed block; 8. Rotating rod; 801. Square block; 9. L-shaped metal elastic sheet; 10. U-shaped frame; 11. Square rod; 12. Pushing block; 13. Spring; 14. Square plate; 15. Groove; 16. Metal pressing block; 17. Resistance wire. Specific embodiments
[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.
[0024] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. Next, the present utility model will be described in detail with reference to the drawings and in conjunction with the embodiments.
[0025] Refer to Figures 1-6, a capacitor discharge protection device, including a housing 1. On both sides of the inner bottom of the housing 1, fixed blocks 7 are fixedly connected. A same rotating rod 8 is rotatably sleeved between the two fixed blocks 7. Square plates 14 are fixedly sleeved on the circumferential surface of the rotating rod 8 between the two fixed blocks 7. Grooves 15 are opened in the middle of the four sides of the two square plates 14. A metal pressing block 16 is bolted to each groove 15. A same resistance wire 17 is fixedly installed between the two metal pressing blocks 16 on the same side. An arc-shaped card slot adapted to the resistance wire 17 is opened on each metal pressing block 16. One end of the rotating rod 8 is fixedly connected to a turntable 5, and the other end of the rotating rod 8 is fixedly connected to a square block 801. A maintenance door 2 is arranged on the housing 1 near the two square plates 14, and the maintenance door 2 can realize the maintenance of the resistance wire 17.
[0026] In this embodiment, a U-shaped frame 10 is fixedly connected to the inner bottom of the housing 1 near the square block 801. A square rod 11 is slidably sleeved on the top of the U-shaped frame 10. A square hole adapted to the square rod 11 is opened on the top of the U-shaped frame 10. A convex block is fixedly connected to the bottom of the square rod 11, and a push block 12 is fixedly connected to the top of the square rod 11, and the push block 12 is adapted to the square block 801. A spring 13 is sleeved on the square rod 11 at the bottom of the push block 12.
[0027] In this embodiment, L-shaped metal elastic sheets 9 are fixedly connected to both sides of the inner side of the housing 1 near the two square plates 14. Each L-shaped metal elastic sheet 9 is adapted to the adjacent metal pressing block 16. When the rotating rod 8 drives the two square plates 14 to rotate, the resistance wire 17 at the top contacts the L-shaped metal elastic sheet 9 through the two corresponding metal pressing blocks 16, so as to realize the switching of the resistance wire 17. The user can select a suitable resistance wire 17 according to the size of the capacitor to avoid the incandescent lamp 601 from being burned out.
[0028] In this embodiment, a mounting seat 6 is also fixedly connected to the inner side of the housing 1. An installation groove is opened on the top of the mounting seat 6, and an incandescent lamp 601 is fixedly connected in the installation groove. By observing the brightness of the incandescent lamp 601 from bright to extinguished, it can be known that the discharge is completed.
[0029] In this embodiment, a panel 4 is fixedly connected to the top of the housing 1. An observation window 401 is opened on the top of the panel 4, and the observation window 401 is adapted to the mounting seat 6. A transparent glass is fixedly installed on the observation window 401. A strip-shaped hole is also opened on the top of the panel 4, and the strip-shaped hole is adapted to the turntable 5.
[0030] In this embodiment, a switch 402 is also fixedly installed on the top of the panel 4. Two enameled wires 3 are fixedly connected to one side of the outer wall of the housing 1. The other end of each enameled wire 3 is fixedly connected to a metal probe 301 with an insulating layer. Only by simultaneously contacting the two pins of the capacitor with the two metal probes 301 with an insulating layer respectively can normal discharge be realized.
[0031] In this embodiment, one of the metal probes 301 with an insulating layer is electrically connected to one of the L-shaped metal shrapnel 9 through a wire, and the other L-shaped metal shrapnel 9 is electrically connected to the switch 402, the incandescent lamp 601, and the other metal probe 301 with an insulating layer in sequence through a wire. Through the above settings, the electrical components of the device are connected.
[0032] Working principle: In this device, the resistance values of the four resistance wires 17 between the two square plates 14 gradually increase, which is convenient for the device to detect capacitors of different sizes. When in use, according to the capacitance of the capacitor to be discharged, rotate the turntable 5 so that the user can select a resistance wire 17 with an appropriate resistance value to contact the two L-shaped metal shrapnel 9 to achieve the connection of the device. In this way, the electric quantity in the capacitor will not be too large to cause damage to the incandescent lamp 601. Turn on the switch 402, and contact the two metal probes 301 with insulating layers with the two pins of the capacitor respectively. At this time, the electric energy of the capacitor forms a path through the two metal probes 301 with insulating layers, the resistance wire 17, and the incandescent lamp 601. At this time, the capacitor is equivalent to a power source, realizing the power supply to the incandescent lamp 601 and the resistance wire 17, making the incandescent lamp 601 light up, and at the same time, the resistance wire 17 is energized and heated, realizing the consumption of the electric energy of the capacitor and the discharge of the capacitor. When the incandescent lamp 601 changes from bright to dim and then goes out, it can be known that the capacitor has been completely discharged.
[0033] For the sake of convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "above" etc. can be used here to describe the spatial position relationship between a device or feature shown in the figure and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation described in the figure for the device. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will be positioned as "below other devices or structures" or "under other devices or structures" afterwards. Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding explanations are made for the spatial relative descriptions used here.
[0034] It should be noted that the terms used here are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used here, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or their combinations.
[0035] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A capacitor discharge protection device, comprising a housing (1), characterized in that: Both sides of the bottom inner side of the shell (1) are fixedly connected with fixed blocks (7); a rotating rod (8) is rotatably sleeved between the two fixed blocks (7); a square plate (14) is fixedly sleeved on the circumferential surface of the rotating rod (8) located between the two fixed blocks (7); grooves (15) are provided in the middle of the four sides of the two square plates (14); a metal pressing block (16) is screwed on each of the grooves (15) by bolts; a resistance wire (17) is fixedly installed between the two metal pressing blocks (16) on the same side; an arc-shaped slot matching the resistance wire (17) is provided on each of the metal pressing blocks (16); one end of the rotating rod (8) is fixedly connected with a rotating disk (5); the other end of the rotating rod (8) is fixedly connected with a square block (801); and an inspection door (2) is provided on the shell (1) near the two square plates (14).
2. The capacitor discharge protection device according to claim 1, characterized in that: A U-shaped frame (10) is fixedly connected to the bottom of the inner side of the shell (1) near the block (801); a square rod (11) is slidably sleeved on the top of the U-shaped frame (10); a square hole matched with the square rod (11) is opened on the top of the U-shaped frame (10); a convex block is fixedly connected to the bottom of the square rod (11); a push block (12) is fixedly connected to the top of the square rod (11); the push block (12) is matched with the block (801); and a spring (13) is sleeved on the bottom of the push block (12) of the square rod (11).
3. The capacitor discharge protection device according to claim 1, characterized in that: L-shaped metal spring sheets (9) are fixedly connected to the inner side of the shell (1) near the two square plates (14), and each of the L-shaped metal spring sheets (9) is adapted to the adjacent metal pressing block (16).
4. The capacitor discharge protection device according to claim 1, characterized in that: A mounting seat (6) is also fixedly connected to the inner side of the housing (1), a mounting slot is provided on the top of the mounting seat (6), and an incandescent lamp (601) is fixedly connected in the mounting slot.
5. The capacitor discharge protection device according to claim 1, characterized in that: The top of the housing (1) is fixedly connected to a panel (4), the top of the panel (4) is provided with an observation window (401), and the observation window (401) is compatible with the mounting seat (6), transparent glass is fixedly mounted on the observation window (401), and the top of the panel (4) is also provided with a strip hole, and the strip hole is compatible with the turntable (5).
6. The capacitor discharge protection device according to claim 5, characterized in that: A switch (402) is also fixedly mounted on the top of the panel (4); two enameled wires (3) are fixedly connected to one side of the outer wall of the housing (1); and a metal probe (301) with an insulating layer is fixedly connected to the other end of each enameled wire (3).
7. The capacitor discharge protection device according to claim 6, characterized in that: One of the insulating metal probes (301) is electrically connected to one of the L-shaped metal springs (9) via a wire, and the other L-shaped metal spring (9) is electrically connected to the switch (402), the incandescent lamp (601) and the other insulating metal probe (301) in sequence via a wire.