Box-type low-voltage power capacitor

Abstract

The utility model relates to a box-type low-voltage power capacitor, which comprises a shell, the top of the shell is open, two oppositely arranged L-shaped plates are arranged in the shell, and the two L-shaped plates can be matched with the end wall of the shell to form a rectangular space; the cover plate covers the top of the shell and blocks the opening, one end of the cover plate is rotationally connected to the shell and controls opening and closing of the opening during rotation, and a downward protrusion is arranged at the bottom of the cover plate; the core body is arranged in the rectangular space of the shell and limited by the two L-shaped plates, and the protrusion abuts against the core body when the opening is closed. According to the utility model, the two L-shaped plates are matched with the end wall of the shell to form a rectangular space which can limit the core body, so that the stability on the horizontal plane can be ensured, after the cover plate is rotationally closed, the bulges on the cover plate can limit the core body in the vertical direction, and the L-shaped plates and the bulges are connected with the shell, so that the core body and the shell can be relatively fixed, and the stability of the core body on the horizontal plane can be ensured. And the two parts form a whole.

Description

Technical Field

[0001] The utility model belongs to the technical field of capacitors, in particular to a box-type low-voltage power capacitor. Background Art

[0002] The main function of low-voltage power capacitors is to provide reactive power, thereby improving the efficiency of the power system. By installing low-voltage power capacitors, the required reactive power can be provided locally, reducing the need to transmit reactive power from long distances, thereby reducing grid losses and improving system efficiency.

[0003] Box-type low-voltage power capacitors use an external box body to protect the internal core body. To ensure the relative fixation between the box body and the core body, the existing technology generally welds lugs on the core body and uses bolts to lock the lugs and the box body. However, this relative fixation method requires removing the bolts every time the core body is removed, which is not convenient. Utility Model Content

[0004] The utility model solves the problem that the box body and the core body are relatively fixed in the prior art, and the bolts need to be removed each time the core body is removed, which is inconvenient. The utility model provides a box-type low-voltage power capacitor. The specific technical solution is as follows:

[0005] This application provides a box-type low-voltage power capacitor, including:

[0006] A housing having an open top and two oppositely disposed L-shaped plates disposed therein, the two L-shaped plates being adapted to cooperate with the end walls of the housing to form a rectangular space;

[0007] a cover plate, covering the top of the housing and blocking the opening, one end of the cover plate being rotatably connected to the housing and controlling the opening and closing of the opening when rotating, and a bottom of the cover plate having a downward protrusion;

[0008] The core is placed in the rectangular space of the shell and is limited by two "L"-shaped plates. The protrusion presses the core when the opening is closed.

[0009] As a further technical solution of the present invention, the shell has a stepped groove corresponding to the free end of the cover plate, the cover plate is snapped into the stepped groove, and the upper edge of the cover plate is aligned with the upper edge of the shell.

[0010] As a further technical solution of the present invention, two wiring terminals are connected to the core body, and the other ends of the two wiring terminals extend to the outside of the shell. The shell is provided with a notch corresponding to the wiring terminals, and the bottom of the notch has a lower arc. The free end of the cover plate is connected to a clip corresponding to the notch, and the bottom of the clip has an upper arc. In the closed state, the clip is stuck in the notch, and the upper arc cooperates with the lower arc to form a channel for the wiring terminals to pass through.

[0011] As a further technical solution of the present invention, a lower pad is adhered to the lower arc, and an upper pad is adhered to the upper arc.

[0012] The beneficial effects of the utility model are as follows:

[0013] (1) In the present application, the rectangular space formed by the two "L"-shaped plates and the end walls of the shell can limit the core, thereby ensuring stability on the horizontal plane. After the cover is rotated and closed, the protrusion on the cover can limit the core in the vertical direction, and the "L"-shaped plates and the protrusion are both connected to the shell, so that the core and the shell can be relatively fixed and the two form a whole.

[0014] (2) In the present application, the setting of the notch allows the terminal to be directly placed in the lower arc without the need for penetration, and after closing, the clip can be snapped into the notch to restrict the terminal and ensure the stability of the terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Shows the overall structural diagram of a box-type low-voltage power capacitor;

[0016] Figure 2 Shows a schematic diagram of the state structure of a box-type low-voltage power capacitor;

[0017] Figure 3 shows a schematic structural diagram of the cover plate;

[0018] Figure 4 A schematic diagram of the matching structure of the shell and the core is shown;

[0019] Figure 5 A schematic structural diagram of the housing is shown.

[0020] Legend:

[0021] 110. Housing; 111. L-shaped plate; 112. Step groove; 113. Notch; 114. Lower arc; 115. Lower pad; 120. Cover; 121. Protrusion; 122. Clip; 123. Upper arc; 124. Upper pad; 130. Core; 131. Terminal block. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0023] Figure 2 and Figure 5The box-type low-voltage power capacitor includes a housing 110, the top of the housing 110 is open, and the housing 110 has two "L"-shaped plates 111 arranged opposite to each other. The two "L"-shaped plates 111 can cooperate with the end wall of the housing 110 to form a rectangular space; a cover 120, which covers the top of the housing 110 and blocks the opening. One end of the cover 120 is rotatably connected to the housing 110 and controls the opening and closing of the opening when rotating. The bottom of the cover 120 has a downward protrusion 121, which presses the core 130 when the opening is closed; the core 130 0, is placed in the rectangular space of the shell 110 and is restricted by two "L"-shaped plates 111; since the rectangular space formed by the two "L"-shaped plates 111 and the end walls of the shell 110 can restrict the core 130, it can ensure stability on the horizontal plane, and after the cover 120 is rotated and closed, the protrusion 121 on the cover 120 can restrict the core 130 in the vertical direction, and the "L"-shaped plates 111 and the protrusion 121 are both connected to the shell 110, so that the core 130 and the shell 110 can be relatively fixed, and the two form a whole.

[0024] It should be noted that the locking method between the free end of the cover 120 and the housing 110 is based on the existing technology, that is, it can be clamping, bolt fixing, etc., and no excessive restrictions are imposed here.

[0025] Figure 5 In the figure, the shell 110 has a stepped groove 112 corresponding to the free end of the cover plate 120. The cover plate 120 is inserted into the stepped groove 112, and the upper edge of the cover plate 120 is aligned with the upper edge of the shell 110. The stepped groove 112 is used to overlap the cover plate 120, so that the cover plate 120 remains in a horizontal state after closing and can be aligned with the shell 110 itself, thereby improving the overall appearance.

[0026] Figure 2 、 Figure 3 and Figure 5In the embodiment, two connecting terminals 131 are connected to the core 130, and the other ends of the two connecting terminals 131 extend to the outside of the shell 110; the shell 110 is provided with a notch 113 corresponding to the connecting terminal 131, and the bottom of the notch 113 has a lower arc 114, and the free end of the cover 120 is connected to a clip 122 corresponding to the notch 113, and the bottom of the clip 122 has an upper arc 123. In the closed state, the clip 122 is inserted into the notch 113, and the upper arc 123 cooperates with the lower arc 114 to form a channel for the connecting terminal 131 to pass through; during installation, the connecting terminal 131 can be directly placed into the lower arc 114 through the notch 113 without threading, which is more convenient. After closing, the clip 122 can be inserted into the notch 113 to restrict The terminal 131 ensures the stability of the terminal 131; a lower pad 115 is adhered to the lower arc 114, and an upper pad 124 is adhered to the upper arc 123; when the notch 113 presses the terminal 131, it can force the lower pad 115 and the upper pad 124 to deform, forming a pressed terminal 131, and since the lower pad 115 and the upper pad 124 are both made of rubber, the two can cooperate to form a rubber ring surrounding the terminal 131, and the relative static friction between the rubber ring and the terminal 131 is used to limit the relative sliding between the terminal 131 and the housing 110, that is, it can ensure the relative fixation between the terminal 131 and the core 130, and ensure the stability of the interface between the terminal 131 and the core 130.

[0027] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same.

Claims

1. Box-type low-voltage power capacitor, characterized in that: include: A housing (110) having an open top and two oppositely disposed L-shaped plates (111) disposed therein, wherein the two L-shaped plates (111) can cooperate with the end wall of the housing (110) to form a rectangular space; A cover plate (120) covers the top of the housing (110) and blocks the opening. One end of the cover plate (120) is rotatably connected to the housing (110) and controls the opening and closing of the opening when rotating. The bottom of the cover plate (120) has a downward protrusion (121); The core (130) is placed in the rectangular space of the shell (110) and is limited by two "L"-shaped plates (111). The protrusion (121) presses the core (130) when the opening is closed.

2. The box-type low-voltage power capacitor according to claim 1, characterized in that: The housing (110) has a stepped groove (112) corresponding to the free end of the cover plate (120), the cover plate (120) is inserted into the stepped groove (112), and the upper edge of the cover plate (120) is aligned with the upper edge of the housing (110).

3. The box-type low-voltage power capacitor according to claim 2, characterized in that: Two connecting terminals (131) are connected to the core (130), and the other ends of the two connecting terminals (131) extend to the outside of the shell (110). The shell (110) is provided with a notch (113) corresponding to the connecting terminals (131), and the bottom of the notch (113) has a lower arc (114). The free end of the cover (120) is connected to a clip (122) corresponding to the notch (113), and the bottom of the clip (122) has an upper arc (123). In a closed state, the clip (122) is inserted into the notch (113), and the upper arc (123) cooperates with the lower arc (114) to form a channel for the connecting terminals (131) to pass through.

4. The box-type low-voltage power capacitor according to claim 3, characterized in that: A lower pad (115) is adhered to the lower arc (114), and an upper pad (124) is adhered to the upper arc (123).

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