Protective low-voltage power capacitor

Abstract

The utility model discloses a protective low-voltage power capacitor, which relates to the technical field of power equipment and comprises a capacitor body, a wire holder is fixedly connected to the top end of the capacitor body, a binding post is fixedly connected to the top of the wire holder, guide plates are arranged on two sides of the wire holder, and protective assemblies are sleeved on the guide plates. The top surface of the capacitor body is provided with a limiting groove. The protective cover is matched with the protective cylinder on the inner side to achieve the effect of sleeving and protecting the binding post from the top, the extension cover is used for shielding and protecting the front position of the binding post from the front position, and meanwhile, the strip-shaped opening formed in the surface of the extension cover is convenient for a subsequent wire to be led out in a segmented mode. And an effect of sealing and protecting between the wiring seat and the protection assembly is achieved through the sealing layer.

Description

Technical Field

[0001] This utility model relates to the field of power equipment, and in particular to a protective low-voltage power capacitor. Background Technology

[0002] Intelligent low-voltage power capacitors are a new generation of reactive power compensation equipment for 0.4kV low-voltage power grids, characterized by high efficiency, energy saving, reduced line losses, improved power factor, and enhanced power quality. The use of reactive power compensation technology is of great significance for effectively improving system voltage stability, ensuring grid voltage quality, increasing the utilization rate of power generation and transmission equipment, reducing active power losses, and lowering power generation costs.

[0003] Existing protective low-voltage power capacitors typically employ simple insulating caps to cover the terminals for protection, often using compression springs to apply pressure and resistance to the terminals. However, the protective effect decreases significantly over time, and its effectiveness needs improvement.

[0004] Therefore, this utility model proposes a protective low-voltage power capacitor. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a protective low-voltage power capacitor, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a protective low-voltage power capacitor, comprising a capacitor body, a terminal block fixedly connected to the top of the capacitor body, and a terminal post fixedly connected to the top of the terminal block, characterized in that: guide plates are provided on both sides of the terminal block, protective components are sleeved on the guide plates, and a limit groove is formed on the top surface of the capacitor body.

[0007] The protective assembly includes a connecting platform with fixed connections and guide frames at both ends. An outer limiting plate is fixedly connected to the outside of the guide frame. A limiting layer and a protective cover are fixedly connected to the bottom and top of the connecting platform, respectively. A protective cylinder is embedded inside the protective cover. An expansion cover is fixedly connected to the surface of the connecting platform. A sealing layer is fixedly connected to both sides of the connecting platform.

[0008] As a further technical solution of this utility model, the terminal block is arranged in a rectangular vertical protrusion, and its front position is recessed in a rectangle. The limiting groove is opened laterally on the front surface of the top of the capacitor body and is located in front of the terminal block.

[0009] As a further technical solution of this utility model, a strip-shaped slot is formed on the inner surface of the limiting groove corresponding to the limiting layer.

[0010] As a further technical solution of this utility model, the guide plate is arranged in a rectangular longitudinal shape and is located at both ends of the terminal block.

[0011] As a further technical solution of this utility model, the connecting platform is set in a rectangular vertical position with its two ends extending outward at horizontal angles. The guide frame is set in a rectangular longitudinal position and is fixedly connected to the two ends of the connecting platform at the angles. The connecting platform is also slidably sleeved with the guide plate. The limiting layer is set as a plastic corrugated layer, and its bottom end is embedded in the strip-shaped groove on the inner surface of the limiting groove.

[0012] As a further technical solution of this utility model, the outer limiting plate is an arc-shaped plate with four sets, which are fixedly connected to the end corners of the guide frame and at the same time fit the two end surfaces of the capacitor body.

[0013] As a further technical solution of this utility model, the protective cover is a rectangular cover body with a vertical protrusion, the protective cylinder is a conical cover body with a horizontally equidistant arrangement and fixedly connected inside the protective cover, and the expansion cover is an arc-shaped cover body with a protrusion and a horizontally equidistant arrangement and fixedly connected to the inner surface of the connecting platform, and is located below the protective cover.

[0014] As a further technical solution of this utility model, the upper and lower ends of the expansion cover are provided with a rigid plastic layer, the front position is provided with a soft rubber layer, and a strip-shaped opening is provided on the front.

[0015] As a further technical solution of this utility model, the sealing layer is set as a silicone sealing layer, which is located on the inner surface of the front side of the terminal block, which is rectangularly recessed.

[0016] This invention provides a protective low-voltage power capacitor, which has the following advantages compared with the prior art:

[0017] Beneficial effects:

[0018] 1. This design is a protective low-voltage power capacitor. The terminal block with a rectangular recess on the front side achieves the effect of matching and fitting the plate with the protective component. The limiting groove facilitates the locking and fixing of the limiting layer. The guide plate facilitates the guiding and limiting of the entire protective component.

[0019] 2. This design provides a protective low-voltage power capacitor. The connecting platform supports the entire protective assembly. The guide frame facilitates the lifting and sliding adjustment of the entire protective assembly along the guide plate. The limiting layer facilitates the connection and fixation of the entire protective assembly and the capacitor body from the top position. The outer limiting plate facilitates the connection and fixation of the entire protective assembly and the capacitor body from both sides.

[0020] 3. This design is a protective low-voltage power capacitor. The protective cover, together with the inner protective cylinder, achieves the effect of protecting the terminal block from the top. The expansion cover achieves the effect of covering and protecting the front of the terminal block from the front. At the same time, the strip-shaped opening on its surface facilitates the outward output of subsequent wire segments. The sealing layer achieves the effect of sealing and protecting the terminal block and the protective components. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a protective low-voltage power capacitor;

[0022] Figure 2 An exploded view of the protective components of a protective low-voltage power capacitor.

[0023] Figure 3 This is a schematic diagram of the installation structure of a protective component for a protective low-voltage power capacitor.

[0024] In the diagram: 1. Capacitor body; 2. Terminal block; 3. Terminal post; 4. Guide plate; 5. Protective component; 6. Limiting groove; 7. Guide frame; 8. Outer limiting plate; 9. Connecting platform; 10. Limiting layer; 11. Protective cover; 12. Protective cylinder; 13. Expansion cover; 14. Sealing layer. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-3 This utility model provides a protective low-voltage power capacitor technical solution: it includes a capacitor body 1, a terminal block 2 fixedly connected to the top of the capacitor body 1, a terminal post 3 fixedly connected to the top of the terminal block 2, guide plates 4 on both sides of the terminal block 2, a protective component 5 sleeved on the guide plates 4, a limiting groove 6 formed on the top surface of the capacitor body 1, the protective component 5 includes a connecting platform 9 fixedly connected to the capacitor body 1 and guide frames 7 at both ends of the platform, an outer limiting plate 8 fixedly connected to the outer side of the guide frame 7, a limiting layer 10 and a protective cover 11 fixedly connected to the bottom and top of the connecting platform 9 respectively, a protective cylinder 12 embedded inside the protective cover 11, an expansion cover 13 fixedly connected to the surface of the connecting platform 9, and a sealing layer 14 fixedly connected to both sides of the connecting platform 9.

[0027] like Figure 1As shown, the terminal block 2 is a rectangular vertical protrusion with a rectangular recess on its front side. The limiting groove 6 is horizontally opened on the top front surface of the capacitor body 1 and is located in front of the terminal block 2. The inner surface of the limiting groove 6 has a strip-shaped slot corresponding to the limiting layer 10. The guide plate 4 is a rectangular longitudinal arrangement and is located at both ends of the terminal block 2. The terminal block 2 with its rectangular recess on the front side achieves the effect of matching and fitting the plate with the protective component 5. The limiting groove 6 facilitates the snap-fit ​​and fixing of the limiting layer 10. The guide plate 4 facilitates the guiding and limiting of the entire protective component 5.

[0028] like Figure 2-3 As shown, the connecting platform 9 is a rectangular vertical structure with horizontal outward bends at both ends. The guide frame 7 is a rectangular longitudinal structure, fixedly connected to the bends at both ends of the connecting platform 9. The connecting platform 9 is also slidably fitted with the guide plate 4. The limiting layer 10 is a plastic corrugated layer, with its bottom end embedded in the strip-shaped groove on the inner surface of the limiting groove 6. The outer limiting plate 8 is an arc-shaped plate with four sets, fixedly connected to the corners of the guide frame 7, and simultaneously adhering to the two ends of the capacitor body 1. The connecting platform 9 provides support for the entire protective assembly 5. The guide frame 7 facilitates the lifting and sliding adjustment of the entire protective assembly 5 along the guide plate 4. The limiting layer 10 facilitates the connection and fixation of the entire protective assembly 5 and the capacitor body 1 from the top position. The outer limiting plate 8 facilitates the connection and fixation of the entire protective assembly 5 and the capacitor body 1 from both sides.

[0029] When connecting and fixing the protective component 5 and the capacitor body 1, the guide frame 7 and the guide plate 4 are sleeved together, the protective component 5 is pressed down, and the limiting layer 10 is embedded in the limiting groove 6 for snap-fit. Then, the outer limiting plates 8 that are attached to both ends of the capacitor body 1 are connected and fixed by external screws.

[0030] The protective cover 11 is a rectangular cover with a vertical protrusion. The protective cylinder 12 is a conical cover and is fixedly connected to the inside of the protective cover 11 with equal horizontal spacing. The expansion cover 13 is an arc-shaped cover with a protrusion and is fixedly connected to the inner surface of the connecting platform 9 with equal horizontal spacing. It is also located below the protective cover 11. The upper and lower ends of the expansion cover 13 are made of hard plastic layers, and the front is made of soft rubber layer with a strip opening. The sealing layer 14 is a silicone sealing layer, which is located on the inner surface of the front of the terminal block 2 with a rectangular concave shape. The protective cover 11 and the inner protective cylinder 12 achieve the effect of protecting the terminal block 3 from above. The expansion cover 13 achieves the effect of covering and protecting the front of the terminal block 3 from the front. At the same time, the strip opening on its surface facilitates the subsequent outward output of the wire segments. The sealing layer 14 achieves the effect of sealing and protecting the terminal block 2 and the protective component 5.

[0031] The working principle of this utility model is as follows: When using this low-voltage power capacitor, firstly, one end of the wire is twisted and connected to the bottom of the terminal 3. After the wire is connected, the user insulates the terminal 3 with the protective component 5. The protective cylinder 12 is then fitted onto the terminal 3 from above, and the protective cylinder 12 surrounds and protects the end of the wire wrapped around the top of the terminal 3. At the same time, the protective cover 11 is embedded in the inner side of the rectangular recessed front of the terminal 2, covering and protecting the entire recessed front of the terminal 2. At this time, the sealing layer 14 seals the connection point between the two. The expansion cover 13 covers and protects the bottom end of the terminal 3 where the wire is wrapped from the outside. The segmented part of the wire can pass out through the strip-shaped opening on the front of the protective cylinder 12, thereby achieving the covering and protection of the capacitor terminal.

[0032] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A protective low-voltage power capacitor, comprising a capacitor body (1), a terminal block (2) fixedly connected to the top of the capacitor body (1), and a terminal post (3) fixedly connected to the top of the terminal block (2), characterized in that: Guide plates (4) are provided on both sides of the terminal block (2), and protective components (5) are sleeved on the guide plates (4). A limit groove (6) is opened on the top surface of the capacitor body (1). The protective component (5) includes a fixedly connected connecting platform (9) and guide frames (7) at both ends. An outer limiting plate (8) is fixedly connected to the outside of the guide frame (7). A limiting layer (10) and a protective cover (11) are fixedly connected to the bottom and top of the connecting platform (9), respectively. A protective cylinder (12) is embedded inside the protective cover (11). An expansion cover (13) is fixedly connected to the surface of the connecting platform (9). A sealing layer (14) is fixedly connected to both sides of the connecting platform (9).

2. The protective low-voltage power capacitor according to claim 1, characterized in that: The terminal block (2) is a rectangular vertical protrusion with a rectangular recess on its front side. The limiting groove (6) is horizontally opened on the front surface of the top of the capacitor body (1) and is located in front of the terminal block (2).

3. A protective low-voltage power capacitor according to claim 1, characterized in that: The inner surface of the limiting groove (6) is provided with a strip-shaped slot corresponding to the limiting layer (10).

4. A protective low-voltage power capacitor according to claim 1, characterized in that: The guide plate (4) is arranged in a rectangular longitudinal shape and is located at both ends of the terminal block (2).

5. A protective low-voltage power capacitor according to claim 1, characterized in that: The connecting platform (9) is set vertically in a rectangular shape, with its two ends extending outward at horizontal angles. The guide frame (7) is set vertically in a rectangular shape and is fixedly connected to the two ends of the connecting platform (9). The connecting platform (9) is also slidably sleeved with the guide plate (4). The limiting layer (10) is set as a plastic corrugated layer, with its bottom end embedded in the strip-shaped slot on the inner surface of the limiting groove (6).

6. A protective low-voltage power capacitor according to claim 1, characterized in that: The outer limiting plate (8) is an arc-shaped plate with four sets, which are fixedly connected to the end corners of the guide frame (7) and simultaneously fit the two end surfaces of the capacitor body (1).

7. A protective low-voltage power capacitor according to claim 1, characterized in that: The protective cover (11) is a rectangular cover with a vertical protrusion. The protective cylinder (12) is a conical cover and is arranged horizontally at equal intervals and fixedly connected inside the protective cover (11). The expansion cover (13) is an arc-shaped cover with a protrusion and is arranged horizontally at equal intervals and fixedly connected to the inner surface of the connecting platform (9), and is located below the protective cover (11).

8. A protective low-voltage power capacitor according to claim 1, characterized in that: The upper and lower ends of the expansion cover (13) are made of hard plastic layer, and a soft rubber layer is provided on the front side, and a strip-shaped opening is provided on the front side.

9. A protective low-voltage power capacitor according to claim 1, characterized in that: The sealing layer (14) is a silicone sealing layer, which is located on the inner surface of the front side of the terminal block (2) which is rectangularly recessed.

Images