Protection mechanism and parallel capacitor with same

Abstract

The utility model belongs to the technical field of capacitors, and provides a protection mechanism and a parallel capacitor with the protection mechanism. The protection mechanism is in one-to-one correspondence with the outlet bushings of the parallel capacitor, and comprises a first protection piece which is fixedly connected to the top of the shell of the parallel capacitor and is used for surrounding the outlet bushings of the parallel capacitor; the second protection piece is movably connected to the first protection piece and is used for surrounding a wiring terminal, extending out of the first protection piece, of the wire outlet sleeve; wherein the second protection piece can elastically stretch out and draw back in the axial direction of the first protection piece so as to expose the wiring terminal of the wire outlet sleeve to achieve disassembly and assembly of the wire. The parallel capacitor comprises the protection mechanism. According to the utility model, through the first protection member and the second protection member which are arranged up and down and can elastically stretch out and draw back relative to each other, the outgoing line sleeve can be protected from being damaged due to collision with external sundries, maintenance of the parallel capacitor is not affected, and normal use of the parallel capacitor is ensured.

Description

Technical Field

[0001] This utility model relates to the field of capacitor technology, specifically to a protective mechanism and a parallel capacitor having the protective mechanism. Background Technology

[0002] Parallel capacitors (formerly known as phase-shifting capacitors) are reactive power compensation devices primarily used to compensate for the reactive power of inductive loads in power systems. Parallel capacitors play a crucial role in power systems, improving the power factor (the ratio of actual power to apparent power), thus making the power system operate more efficiently. Furthermore, parallel capacitors improve voltage quality by providing additional reactive power support, helping to maintain voltage stability in the power grid.

[0003] Currently, the bushings of existing parallel capacitors are directly exposed on the outer casing without effective protective measures. This makes the bushings prone to damage from collisions with external debris during the maintenance or disassembly of the parallel capacitors, thus affecting their normal use. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a protective mechanism and a parallel capacitor with the protective mechanism, thereby solving the problem that the outgoing bushings of existing parallel capacitors are directly exposed on the outer casing without effective protective measures, which makes the outgoing bushings easily damaged by collisions with external debris during the maintenance or disassembly of the parallel capacitor, thus affecting the normal use of the parallel capacitor.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A protective mechanism, corresponding one-to-one with the bushings of parallel capacitors, the protective mechanism comprising:

[0007] The first protective component is fixedly connected to the top of the parallel capacitor casing and is used to surround the outgoing sleeve of the parallel capacitor; and

[0008] The second protective component is movably connected to the first protective component and is used to surround the terminal of the outgoing sleeve that extends out from the first protective component.

[0009] The second protective component can elastically extend and retract along the axial direction of the first protective component to expose the wiring terminals of the outgoing sleeve for the installation and removal of the wires.

[0010] In one embodiment disclosed in this application, the first protective component includes a bottom ring, a support rod, and a top ring connected in sequence. The bottom surface of the bottom ring is provided with a plurality of circumferentially distributed locking blocks. The locking blocks are engaged with the locking grooves provided on the top of the outer shell. The top surface of the bottom ring is connected to an inner cylinder, which is located inside the top ring to surround the cable sleeve passing through the bottom ring.

[0011] The second protective component includes a movable ring and an outer cylinder that are connected to each other. The movable ring is located between the bottom ring and the top ring and is elastically telescopically connected to the support rod. The outer cylinder is located inside the top ring and is slidably sleeved on the outside of the inner cylinder to surround the terminal of the cable outlet sleeve that extends out of the inner cylinder.

[0012] In one embodiment disclosed in this application, the card block has three blocks evenly distributed around its circumference.

[0013] In one embodiment disclosed in this application, the movable ring is elastically telescopically connected to the support rod via an elastic element.

[0014] In one embodiment disclosed in this application, at least one pair of support rods are symmetrically provided, and each of the support rods slides through the movable ring;

[0015] The elastic element is fitted onto the support rod, and its two ends are respectively connected to the bottom ring and the movable ring.

[0016] In one embodiment disclosed in this application, the support rods are provided in two pairs symmetrically, and they are arranged in a cross shape.

[0017] In one embodiment disclosed in this application, the elastic element is a spring.

[0018] In one embodiment disclosed in this application, the depth of the outer cylinder is less than the depth of the inner cylinder.

[0019] A parallel capacitor having the protective mechanism, comprising any one of the protective mechanisms described above.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1. The first and second protective components, which are arranged vertically and can be relatively elastically extended and retracted, can protect the outgoing bushing from being damaged by collisions with external debris, while not affecting the maintenance of the parallel capacitor, thus ensuring the normal use of the parallel capacitor.

[0022] 2. The two pairs of support rods arranged in a cross shape can improve the smoothness of the sliding of the movable ring on the support rods. At the same time, it can make the elastic element on each support rod evenly compressed, ensuring the smoothness of the outer cylinder sliding outside the inner cylinder, which is conducive to improving the maintenance efficiency of the parallel capacitor.

[0023] 3. The protection mechanism for the outgoing bushing helps to extend the service life of the parallel capacitor. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0026] Figure 2 In order to be in Figure 1 A three-dimensional structural diagram showing the result of removing one set of protective mechanisms and partially cutting out another set of protective mechanisms;

[0027] Figure 3 This is a three-dimensional structural diagram of the protective mechanism and the outgoing sleeve after partial cross-section. Detailed Implementation

[0028] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this invention.

[0034] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0035] See Figures 1-3 As shown, on the one hand, this utility model provides a protective mechanism that corresponds one-to-one with the outlet bushing 200 of the parallel capacitor. The protective mechanism includes:

[0036] The first protective component 300 is fixedly connected to the top of the parallel capacitor housing 100 and is used to surround the outlet sleeve 200 of the parallel capacitor; and

[0037] The second protective member 400 is movably connected to the first protective member 300 and is used to surround the terminal of the outgoing sleeve 200 extending from the first protective member 300.

[0038] The second protective component 400 can elastically extend and retract along the axial direction of the first protective component 300 to expose the wiring terminals of the outgoing sleeve 200 for the installation and removal of the wires.

[0039] During use, the lower first protective member 300 surrounds the outgoing sleeve 200, and the upper second protective member 400 surrounds the terminals extending from the first protective member 300, thus protecting the entire outgoing sleeve 200 from damage caused by collisions with external debris. When maintenance is required, pressing down on the second protective member 400 allows it to elastically extend and retract along the axial direction of the first protective member 300 towards the top of the parallel capacitor housing 100, exposing the terminals of the outgoing sleeve 200. This facilitates the removal and installation of the wires for maintenance of the parallel capacitor. In other words, the vertically arranged and relatively elastically extendable first and second protective members 300 and 400 protect the outgoing sleeve 200 from damage by collisions with external debris without affecting the maintenance of the parallel capacitor, ensuring its normal operation.

[0040] See Figure 2 and Figure 3 As shown, the first protective component 300 includes a bottom ring 310, a support rod 320, and a top ring 330 connected in sequence. The bottom surface of the bottom ring 310 is provided with a plurality of circumferentially distributed locking blocks 311. The locking blocks 311 are engaged with the locking grooves 110 provided on the top of the outer casing 100. The top surface of the bottom ring 310 is connected to an inner cylinder 340, which is located inside the top ring 330 to surround the cable outlet sleeve 200 passing through the bottom ring 310. The second protective component 400 includes a movable ring 410 and an outer cylinder 420 connected to each other. The movable ring 410 is located between the bottom ring 310 and the top ring 330 and is elastically telescopically connected to the support rod 320. The outer cylinder 420 is located inside the top ring 330 and is slidably sleeved on the outside of the inner cylinder 340 to surround the terminal of the cable outlet sleeve 200 extending from the inner cylinder 340. Through the elastic extension and retraction of the movable ring 410 on the support rod 320, the outer cylinder 420 can slide up and down relative to the inner cylinder 340 and can be retracted downwards, thereby protecting the outlet bushing 200 without affecting the maintenance of the parallel capacitor.

[0041] In this embodiment, there are 3 card blocks 311 evenly distributed around the circumference.

[0042] The movable ring 410 is elastically and telescopically connected to the support rod 320 via an elastic element 430. Specifically, at least one pair of support rods 320 are symmetrically arranged, with each support rod 320 slidingly passing through the movable ring 410; the elastic element 430 is fitted onto the support rod 320, with its two ends respectively abutting against the bottom ring 310 and the movable ring 410. Through the compression and reset of the elastic element 430, the movable ring 410 can elastically extend and retract under the guidance of the support rod 320, thereby realizing the up-and-down sliding of the outer cylinder 420 outside the inner cylinder 340.

[0043] Two pairs of support rods 320 are symmetrically arranged in a cross shape. This improves the smoothness of the sliding of the movable ring 410 on the support rods 320, and also ensures that the elastic element 430 on each support rod 320 is uniformly compressed, guaranteeing the smoothness of the sliding process of the outer cylinder 420 on the outside of the inner cylinder 340, which is beneficial to improving the maintenance efficiency of the parallel capacitor.

[0044] In this embodiment, the elastic element 430 is preferably a spring.

[0045] The depth of the outer cylinder 420 is less than the depth of the inner cylinder 340. Thus, the outer cylinder 420 can be completely retracted after the elastic element 430 is compressed downward by the movable ring 410, thereby fully exposing the wiring terminals of the wire sleeve 200, making it easier to install and remove the wires.

[0046] On the other hand, this utility model provides a parallel capacitor with the aforementioned protective mechanism. When the parallel capacitor is in use, the outer cylinder 420 of the protective mechanism is pressed to expose the terminals of the lead sleeve 200 for electrical connection with the wires. Then, the outer cylinder 420 is reset by the elastic element 430, thereby protecting the entire lead sleeve 200 from damage by impact with external debris, which helps extend the service life of the parallel capacitor.

[0047] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the technical solutions of this utility model. Any technical solution that can be implemented based on the above embodiments without creative effort should be considered to fall within the scope of protection of this utility model patent.

Claims

1. A protective mechanism, corresponding one-to-one with the bushings of parallel capacitors, characterized in that, The protective measures include: The first protective component is fixedly connected to the top of the parallel capacitor casing and is used to surround the outgoing sleeve of the parallel capacitor; and The second protective component is movably connected to the first protective component and is used to surround the terminal of the outgoing sleeve that extends out from the first protective component. The second protective component can elastically extend and retract along the axial direction of the first protective component to expose the wiring terminals of the outgoing sleeve for the installation and removal of the wires.

2. The protective mechanism according to claim 1, characterized in that: The first protective component includes a bottom ring, a support rod, and a top ring connected in sequence. The bottom surface of the bottom ring is provided with a plurality of circumferentially distributed locking blocks. The locking blocks are engaged with the locking grooves provided on the top of the outer shell. The top surface of the bottom ring is connected to an inner cylinder, which is located inside the top ring to surround the cable sleeve passing through the bottom ring. The second protective component includes a movable ring and an outer cylinder that are connected to each other. The movable ring is located between the bottom ring and the top ring and is elastically telescopically connected to the support rod. The outer cylinder is located inside the top ring and is slidably sleeved on the outside of the inner cylinder to surround the terminal of the cable outlet sleeve that extends out of the inner cylinder.

3. The protective mechanism according to claim 2, characterized in that, The card block has three pieces evenly distributed around its circumference.

4. The protective mechanism according to claim 2 or 3, characterized in that, The movable ring is elastically and telescopically connected to the support rod via an elastic element.

5. The protective mechanism according to claim 4, characterized in that: The support rods are symmetrically provided in at least one pair, and each of the support rods slides through the movable ring; The elastic element is fitted onto the support rod, and its two ends are respectively connected to the bottom ring and the movable ring.

6. The protective mechanism according to claim 5, characterized in that, The support rods are provided in two pairs symmetrically, and they are distributed in a cross shape.

7. The protective mechanism according to claim 5 or 6, characterized in that, The elastic element is a spring.

8. The protective mechanism according to claim 2, characterized in that, The depth of the outer cylinder is less than the depth of the inner cylinder.

9. A parallel capacitor having the protective mechanism, characterized in that, Includes the protective mechanism described in any one of claims 1 to 8.

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