Box type capacitor

Abstract

The utility model provides a box-type capacitor, belongs to the technical field of capacitors, and solves the problem that a conventional capacitor is inconvenient to maintain. The upper end face of the box body is provided with a wiring terminal; the box body is internally provided with a placing seat; the placing seat is provided with a core body; a lead is connected between the core body and the wiring terminal; a reset spring is installed between the limiting block and the fixing groove, a sealing groove is formed in the sliding groove, and a sealing plate is arranged on the sealing plate. And a sealing gasket is wrapped outside the sealing plate. The utility model has the advantages that the access hole and the sealing plate are arranged, and the sealing plate is fixedly connected with the box body through the limiting block, so that the sealing plate can be removed by releasing the effect of the limiting block on the sealing plate, and the maintenance is convenient; the sealing plate wrapped with the sealing gasket is arranged on the sealing plate and matched with the sealing groove to seal the access hole, and the sealing performance of the access hole is improved.

Description

Technical Field

[0001] This utility model belongs to the field of capacitors, and relates to a capacitor, and more particularly to a box-type capacitor. Background Technology

[0002] Two conductors placed close together, with a non-conductive insulating medium sandwiched between them, constitute a capacitor. When a voltage is applied between the two plates of the capacitor, the capacitor stores charge. The capacitance of a capacitor is numerically equal to the ratio of the charge on one of the conducting plates to the voltage between the two plates.

[0003] In AC circuits, the direction of current changes with time in a certain way, and a changing electric field is generated between the capacitor plates, making the capacitor conductive. In order to prevent the capacitor from leaking current, a box-type capacitor is used. However, the existing box-type capacitors are not easy to repair, which affects daily use and causes inconvenience to people's lives. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems in the prior art by providing a box-type capacitor that facilitates the inspection and maintenance of its inner wall.

[0005] This utility model can be achieved through the following technical solution: a box-type capacitor, including a box body, a terminal block installed on the upper surface of the box body, a placement seat installed inside the box body, a core installed on the placement seat, a wire connecting the core block and the terminal block, an inspection port opened on the front of the box body, a sliding groove opened on the inspection port, a sealing plate slidably installed on the sliding groove, a fixing groove opened on the sliding groove, a limit block installed in the fixing groove, and a return spring installed between the limit block and the fixing groove.

[0006] In the aforementioned box-type capacitor, a sealing groove is provided on the slide, a sealing plate is provided on the sealing plate, and a sealing gasket is wrapped around the sealing plate.

[0007] In the aforementioned box-type capacitor, a pull block extends from the limiting block, a corresponding placement groove is provided on the outside of the fixing groove, a screw hole is provided on the placement groove, and a through hole is provided on the pull block. Bolts pass through the screw hole and the through hole.

[0008] In the aforementioned box-type capacitor, a connecting seat is provided on the placement base, and two connecting rods are connected to the connecting seat. The two connecting rods are connected to the connecting seat through a rotating rod, and a spacer ring is provided on the rotating rod.

[0009] In the aforementioned box-type capacitor, an installation groove is provided on the inner wall of the box, a slider is installed in the installation groove, a spring is connected between the slider and the installation groove, and the slider is connected to a connecting rod.

[0010] In the aforementioned box-type capacitor, a buffer plate is installed on the placement slot, and buffer pads are installed on both sides of the buffer plate.

[0011] Compared with the prior art, the advantages of this utility model are as follows: an inspection port is opened on the original box capacitor, the inspection port is sealed with a sealing plate and limited by a limiting block to prevent the sealing plate from accidentally sliding out; the core is placed by a placement seat, and a buffer structure is installed between the placement seat and the box to prevent the box from accidentally colliding with the core and causing damage to the core. Attached Figure Description

[0012] Figure 1 This is an exploded view of a box capacitor;

[0013] Figure 2 This is a front view of a box-type capacitor;

[0014] Figure 3 This is a cross-sectional view of a box-type capacitor;

[0015] Figure 4 This is a 3D view of the casing of a box capacitor;

[0016] Figure 5 This is a 3D view of the rotating shaft of a box capacitor;

[0017] The components are as follows: 1. Box body; 11. Terminal block; 12. Inspection port; 121. Slide groove; 122. Fixing groove; 122a. Placement groove; 122b. Screw hole; 123. Sealing groove; 13. Mounting groove; 2. Placement seat; 21. Core; 22. Wire; 23. Connecting seat; 3. Sealing plate; 31. Sealing plate; 311. Sealing gasket; 4. Limiting block; 41. Pulling block; 411. Through hole; 5. Return spring; 6. Bolt; 7. Connecting rod; 8. Rotating rod; 81. Spacer ring; 9. Sliding block; 91. Buffer spring; 10. Buffer plate; 101. Buffer pad. Detailed Implementation

[0018] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0019] like Figures 1 to 5 As shown, this utility model can be implemented through the following embodiments: A box-type capacitor includes a box body 1, a terminal block 11 is installed on the upper end face of the box body 1, a placement seat 2 is installed inside the box body 1, a core 21 is installed on the placement seat 2, a wire 22 is connected between the core 21 and the terminal block 11, an inspection port 12 is opened on the front of the box body 1, a sliding groove 121 is opened on the inspection port 12, a sealing plate 3 is slidably installed on the sliding groove 121, a fixing groove 122 is opened on the sliding groove 121, a limit block 4 is installed in the fixing groove 122, and a return spring 5 is installed between the limit block 4 and the fixing groove 122.

[0020] The placement seat 2 mounts the core 21, providing a position for mounting the core 21 within the housing 1, thus isolating the core 21 from the housing 1 and preventing direct contact that could cause current to flow between the housing 1 and the core 21. The wire 22 connects the terminal 11 and the core 21, allowing the core 21 to store charge normally. The wire 22 is also long enough that even if the placement seat 2 shifts, it cannot pull on the terminal 11 and the core 21. The inspection port 12 is provided for inspecting the internal structure of the housing 1. The sealing plate 3 seals the housing 1, preventing external impurities from entering and causing malfunctions in the core 21. A limiting block 4 is installed in the fixing groove 122 to secure the sealing plate 3 to the housing 1, preventing the sealing plate 3 from accidentally detaching from the housing 1. The return spring 5 allows the limiting block 4 to slide and return within the fixing groove 122, making the installation and removal of the sealing plate 3 possible.

[0021] like Figure 1 and Figure 4 As shown, a sealing groove 123 is provided on the slide 121, and a sealing plate 31 is provided on the sealing plate 3. A sealing gasket 311 is wrapped around the sealing plate 31. The sealing groove 123 and the sealing plate 31 cooperate to seal the inspection port 12, improving the sealing performance of the inspection port 12; the wrapping of the sealing gasket 311 further improves the sealing performance; the cooperation of the sealing groove 123 and the sealing plate 31 can guide the sealing plate 3 to slide into the inspection port 12.

[0022] like Figure 1 , Figure 2 and Figure 4 As shown, a pull block 41 extends from the limiting block 4. A corresponding placement groove 122a is provided on the outer side of the fixing groove 122. A screw hole 122b is provided on the placement groove 122a. A through hole 411 is provided on the pull block 41. A bolt 6 passes through the screw hole 122b and the through hole 411. The pull block 41 is used to pull the limiting block 4 away from the sealing plate 3, so as to realize the disassembly of the sealing plate 3 and facilitate maintenance. The placement groove 122a is used to place the pull block 41. A gap is left between the placement groove 122a and the pull block 41 to facilitate the user to lift the pull block 41 and thus pull the limiting block 4 away from the sealing plate 3. The bolt 6 passes through the screw hole 122b on the placement groove 122a and the through hole 411 on the pull block 41, so that the limiting block 4 and the box body 1 are fixedly connected, preventing the limiting block 4 from accidentally detaching from the sealing plate 3 and causing the sealing plate 3 to slide out of the box body 1.

[0023] like Figure 3 and Figure 5As shown, a connecting seat 23 is provided on the placement base 2, and two connecting rods 7 are connected to the connecting seat 23. The two connecting rods 7 are connected to the connecting seat 23 through a rotating rod 8, and a spacer ring 81 is provided on the rotating rod 8. The connection between the connecting seat 23 and the connecting rods 7, and the connecting rods 7 are connected to the box body 1, realizes the installation of the placement base 2 inside the box body 1, and prevents the box body 1 from directly contacting the core 21, which may cause the core 21 to break down due to current. The spacer ring 81 on the rotating rod 8 is provided to facilitate the rotation of the connecting rods 7 and prevent the connecting rods 7 from rubbing against each other and causing wear.

[0024] like Figure 3 and Figure 4 As shown, a mounting groove 13 is provided on the inner wall of the box body 1. A slider 9 is installed in the mounting groove 13, and a spring connects the slider 9 to the mounting groove 13. The slider 9 is connected to the connecting rod 7. The connection between the slider 9 and the connecting rod 7, and the connection between the slider 9 and the mounting groove 13, allows the connecting rod 7 to be buffered by the spring when it moves, thereby buffering the movement of the placement seat 2 and preventing the placement seat 2 from shaking violently when the box body 1 is impacted, which would cause damage to the placement seat 2 and the core 21 due to the impact.

[0025] like Figure 1 As shown, a buffer plate 10 is installed on the placement groove 122a, and buffer pads 101 are installed on both sides of the buffer plate 10. The buffer plate 10 is used to limit the displacement of the core 21 and prevent the core 21 from moving back and forth and colliding with the box 1, which would cause damage to the core 21; the buffer pads 101 are used to absorb the kinetic energy of the core 21 and prevent the core 21 from impacting the buffer plate 10 when it shakes accidentally, thus protecting the core 21 from damage.

[0026] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0027] Although this document uses a variety of terms, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this invention; interpreting them as any additional limitation would contradict the spirit of this invention.

Claims

1. A box-type capacitor, comprising a box body (1), wherein a terminal block (11) is mounted on the upper surface of the box body (1), characterized in that: The box (1) is equipped with a placement seat (2), and a core (21) is installed on the placement seat (2). A wire (22) is connected between the core (21) and the terminal (11). The box (1) has an inspection port (12) on the front. A sliding groove (121) is opened on the inspection port (12). A sealing plate (3) is slidably installed on the sliding groove (121). A fixing groove (122) is opened on the sliding groove (121). A limit block (4) is installed in the fixing groove (122). A return spring (5) is installed between the limit block (4) and the fixing groove (122).

2. A box-type capacitor according to claim 1, characterized in that, A sealing groove (123) is provided on the slide (121), and a sealing plate (31) is provided on the sealing plate (3), and a sealing gasket (311) is wrapped around the sealing plate (31).

3. A box-type capacitor according to claim 1, characterized in that, A pulling block (41) extends from the limiting block (4), and a corresponding placement groove (122a) is provided on the outside of the fixing groove (122). A screw hole (122b) is provided on the placement groove (122a), and a through hole (411) is provided on the pulling block (41). A bolt (6) passes through the screw hole (122b) and the through hole (411).

4. A box-type capacitor according to claim 1, characterized in that, The placement seat (2) is provided with a connecting seat (23), and the connecting seat (23) is connected to two connecting rods (7). The two connecting rods (7) are connected to the connecting seat (23) through a rotating rod (8), and a spacer ring (81) is provided on the rotating rod (8).

5. A box-type capacitor according to claim 4, characterized in that, The inner wall of the box (1) is provided with an installation groove (13), a slider (9) is installed in the installation groove (13), a spring is connected between the slider (9) and the installation groove (13), and the slider (9) is connected to the connecting rod (7).

6. A box-type capacitor according to claim 1, characterized in that, A buffer plate (10) is installed on the placement seat (2), and buffer pads (101) are installed on both sides of the buffer plate (10).

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