A cabinet for outdoor circuit breakers

Abstract

A box for outdoor circuit breaker, comprising a U-shaped bent plate and a side plate, which enclose an open downward cavity, the cavity is provided with: two intermediate support plates, the upper end of which is fixedly connected with the U-shaped bent plate, the gap for driving square shaft is formed between the two intermediate support plates, one end of the intermediate support plate is outwardly bent to form a connecting plate for fixing the permanent magnet mechanism, the first guide groove and the second guide groove are respectively arranged perpendicularly on the intermediate support plate, wherein the first guide groove is arranged along the length direction; two side plate support plates are arranged at the front and rear ends of the intermediate support plate respectively, the upper end of which is fixedly connected with the U-shaped bent plate, and the cross section of the side plate support plate is U-shaped, and the third guide groove and the fourth guide groove are arranged perpendicularly on both sides. Simplify the internal installation structure, directly fix the permanent magnet mechanism and the transmission mechanism of the outdoor circuit breaker through multiple support plates, save materials, and reduce the overall weight at the same time.

Description

Technical Field

[0001] This utility model relates to the field of outdoor vacuum circuit breakers, specifically to a housing for outdoor circuit breakers. Background Technology

[0002] High-voltage circuit breakers (or high-voltage switches) can not only cut off or close the no-load current and load current in high-voltage circuits, but also cut off overload current and short-circuit current through the action of relay protection devices when a system fault occurs. They have a fairly complete arc-extinguishing structure and sufficient breaking capacity, and can be divided into: oil circuit breakers (multi-oil circuit breakers, low-oil circuit breakers), sulfur hexafluoride circuit breakers (SF6 circuit breakers), compressed air circuit breakers, vacuum circuit breakers, etc.

[0003] As for the enclosure of the outdoor circuit breaker, corresponding devices such as permanent magnet mechanism and transmission mechanism need to be installed inside. Therefore, a large number of internal structures are needed to fix each device, resulting in an excessive number of internal sheet metal parts and increasing the weight of the entire outdoor circuit breaker. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a housing for outdoor circuit breakers.

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

[0006] A housing for an outdoor circuit breaker, having a length direction and a width direction, includes a U-shaped bend and side plates disposed at both ends of the U-shaped bend. The U-shaped bend and the side plates at both ends form a downward-opening cavity, and the cavity contains:

[0007] Two intermediate support plates are symmetrically arranged relative to the center line of the box body along its length. Their upper ends are fixedly connected to a U-shaped bent plate. A gap is formed between the two intermediate support plates, through which the drive square shaft can pass. One end of each intermediate support plate is bent outward to form a connecting plate for fixing the permanent magnet mechanism. The intermediate support plates are respectively provided with a first guide groove and a second guide groove arranged perpendicularly to each other, wherein the first guide groove is arranged along the length direction.

[0008] Two side support plates are set along the length of the box together with the middle support plate, and the two are located at the front and rear ends of the middle support plate respectively. Their upper ends are fixedly connected to the U-shaped bent plate. The cross-section of the side support plate is U-shaped, and both sides are provided with a vertically arranged third guide groove and a fourth guide groove.

[0009] The cavity has a bottom plate at its opening.

[0010] The upper end of the U-shaped curved plate is provided with several hanging ears.

[0011] The top of the cavity is provided with a first mounting plate that works in conjunction with the connecting plate.

[0012] The intermediate support plate is also provided with a fifth guide groove, and the fifth guide groove is arranged parallel to the first guide groove.

[0013] The side plate is provided with a second mounting plate for installing the buffer pad.

[0014] The second mounting plate has connectors on both sides for fixing the gate spring assembly.

[0015] The upper surface of the U-shaped curved plate is provided with several connection holes for installing vacuum poles.

[0016] The advantages of this utility model are: it simplifies the internal installation structure, directly fixes the permanent magnet mechanism and transmission mechanism of the outdoor circuit breaker through multiple support plates, saves materials, and reduces the overall weight. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0019] Figure 3 This is the internal front view of this utility model.

[0020] Figure 4 This is a schematic diagram of the structure of the present invention applied to an outdoor circuit breaker. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0023] This utility model discloses a housing for an outdoor circuit breaker, which has a length direction and a width direction, such as... Figure 1 As shown, X is its length direction, Y is its width direction, and Z is its height direction. Vacuum poles are spaced apart along their length direction on the upper surface of the housing.

[0024] It includes a U-shaped bent plate 100 and side plates 200 arranged at both ends of the U-shaped bent plate 100. The U-shaped bent plate 100 and the side plates at both ends enclose a cavity with an opening facing downward. At the same time, a detachable bottom plate is provided at the bottom of the cavity. The three cooperate to form a sealed space, and the U-shaped bent plate and the side plates are welded and fixed.

[0025] Such as Figure 2 shown, the cavity is provided with:

[0026] Two intermediate support plates 300, which are symmetrically arranged relative to the center line in the length direction of the box body. Their upper ends are fixedly connected to the U-shaped bent plate 100. A gap is formed between the two intermediate support plates 300 for the driving square shaft to pass through. One end of the intermediate support plate 300 is bent outward to form a connecting plate 310 for fixing the permanent magnet mechanism. The intermediate support plates 300 are respectively provided with a first guiding groove 320 and a second guiding groove 330 which are perpendicular to each other, and the first guiding groove 320 is arranged along the length direction;

[0027] Two side plate support plates 400, which are arranged along the length direction of the box body together with the intermediate support plates 300, and are respectively located at the front and rear ends of the intermediate support plates 300. Their upper ends are fixedly connected to the U-shaped bent plate 100. The cross section of the side plate support plate 400 is U-shaped, and third guiding grooves 410 and fourth guiding grooves 420 which are vertically arranged are provided on both sides.

[0028] The intermediate support plate 300 is welded and fixed to the U-shaped bent plate and to the horizontally arranged steel plate therein. Similarly, the side plate support plate is also welded and fixed to the U-shaped bent plate.

[0029] The intermediate support plate is formed into an L-shaped structure by bending one end of the plate. When the two intermediate support plates are fixed on the U-shaped bent plate, they are approximately in the shape of "儿" with a gap formed in the middle to facilitate the driving square shaft 10 to pass through.

[0030] Such as Figure 4 shown, the first guiding groove and the third guiding groove are used to limit the pin shafts of the driving square shaft 10 and the crank arm 20, that is, the pin shafts can slide along the guiding grooves. The second guiding groove and the fourth guiding groove are used to limit the pin shafts connecting the insulating pull rod and the crank arm. With the perpendicular design of the two, the movement of the driving square shaft along the length direction can be converted into the movement of the insulating pull rod along the height direction.

[0031] A plurality of hanging ears 110 are provided at the upper end of the U-shaped bent plate 100. The hanging ears are directly welded and fixed to the upper surface of the U-shaped bent plate and are used for hoisting the assembled outdoor circuit breaker.

[0032] The top of the cavity is provided with a first mounting plate 500 that cooperates with the connecting plate 310. That is, one end of the permanent magnet mechanism is fixedly connected to the connecting plate, and the upper side of its other end is connected to the first mounting plate 500. The two fix the permanent magnet mechanism. At the same time, the two intermediate support plates can also guide the pull rod of the permanent magnet mechanism. That is, the intermediate support plate 300 is also provided with a fifth guide groove 340, and the fifth guide groove 340 is arranged parallel to the first guide groove 320. The pull rod of the permanent magnet mechanism 30 is slidably engaged with the fifth guide groove through a pin.

[0033] like Figure 3 As shown, the height difference between the fifth guide groove and the first guide groove is equal to the length of the second guide groove, and the end of the fifth guide groove is close to the beginning of the first guide groove.

[0034] The side plate 200 is provided with a second mounting plate 600 for mounting the buffer pad, which is used to fix the buffer pad and prevent the side plate from being directly impacted when the drive square shaft is opened, thus avoiding deformation of the side plate.

[0035] The second mounting plate 600 has connecting parts 700 on both sides for fixing the opening spring assembly 40. These parts are U-shaped and are used to connect with the hanging plate of the opening spring assembly to fix the opening spring assembly.

[0036] The upper surface of the U-shaped bend plate 100 is provided with a plurality of connection holes 120 for installing vacuum poles, which are used to fix the vacuum poles. At the same time, the upper surface of the U-shaped bend plate is flat, and the sealing performance of the connection between the vacuum pole and the U-shaped bend plate can be achieved through the design of the sealing ring at the contact position between the vacuum pole and the U-shaped bend plate.

[0037] The embodiments should not be regarded as limitations on the present invention, but any improvements made based on the spirit of the present invention should be within the protection scope of the present invention.

Claims

1. A housing for an outdoor circuit breaker, having a length direction and a width direction, characterized in that: It includes a U-shaped bend (100) and side plates (200) disposed at both ends of the U-shaped bend (100). The U-shaped bend (100) and the side plates at both ends form a downward-opening cavity. The cavity is provided with: Two intermediate support plates (300) are symmetrically arranged relative to the center line of the box body in the length direction. Their upper ends are fixedly connected to the U-shaped bent plate (100). A gap is formed between the two intermediate support plates (300) for the drive square shaft to pass through. One end of the intermediate support plate (300) is bent outward to form a connecting plate (310) for fixing the permanent magnet mechanism. The intermediate support plate (300) is provided with a first guide groove (320) and a second guide groove (330) arranged perpendicularly to each other. The first guide groove (320) is arranged along the length direction. Two side support plates (400) are set along the length of the box together with the middle support plate (300), and the two are located at the front and rear ends of the middle support plate (300) respectively. Their upper ends are fixedly connected to the U-shaped bending plate (100), and the cross-section of the side support plate (400) is U-shaped, and both sides are provided with a vertically arranged third guide groove (410) and a fourth guide groove (420).

2. The enclosure for an outdoor circuit breaker according to claim 1, characterized in that: The cavity has a bottom plate at its opening.

3. The enclosure for an outdoor circuit breaker according to claim 1, characterized in that: The upper end of the U-shaped bend (100) is provided with several hanging ears (110).

4. The enclosure for an outdoor circuit breaker according to claim 1, characterized in that: The top of the cavity is provided with a first mounting plate (500) that works in conjunction with the connecting plate (310).

5. The enclosure for an outdoor circuit breaker according to claim 1, characterized in that: The intermediate support plate (300) is also provided with a fifth guide groove (340), and the fifth guide groove (340) is arranged parallel to the first guide groove (320).

6. The enclosure for an outdoor circuit breaker according to claim 1, characterized in that: The side plate (200) is provided with a second mounting plate (600) for mounting the buffer pad.

7. A housing for an outdoor circuit breaker according to claim 6, characterized in that: The second mounting plate (600) has connectors (700) on both sides for fixing the opening spring assembly.

8. The enclosure for an outdoor circuit breaker according to claim 1, characterized in that: The upper surface of the U-shaped bend plate (100) is provided with several connection holes (120) for installing vacuum poles.

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