Contact structure for 1.5 kV direct current circuit breaker

Abstract

The utility model discloses a contact structure for a 1.5 kV direct current circuit breaker, and belongs to the field of electrical equipment. The contact structure comprises an upper conducting strip, a lower conducting strip is arranged at the bottom of the upper conducting strip, and a first elastic supporting plate and a second elastic supporting plate are arranged between the lower conducting strip and the upper conducting strip; the number of the first elastic supporting plates and the number of the second elastic supporting plates are both two, the first elastic supporting plates and the second elastic supporting plates are symmetrically distributed between the lower conducting strip and the upper conducting strip, and by arranging a moving rod, a sleeve rod, a limiting hole and a bolt, the moving rod is pulled to move in the sleeve rod to adjust the position of the upper conducting strip. And then the bolt is rotated to penetrate through the interior of the sleeve rod to enter the interior of the moving rod to position the moving rod, so that the problem that drawer seat buses with different sizes cannot be clamped due to the fact that the position of the conducting strip cannot be adjusted by an existing contact structure for the. KV direct-current circuit breaker is solved, and the practicability is improved.

Description

Technical Field

[0001] The present application relates to the technical field of electrical equipment, and in particular to a contact structure for a 1.5kV DC circuit breaker. Background Art

[0002] A circuit breaker is a switching device that can close, carry, and interrupt current under normal circuit conditions and can close, carry, and interrupt current under abnormal circuit conditions within a specified time. The contact is one of the key components of the switching device. The main performance and life of the switching device largely depend on the quality of the contact material.

[0003] The patent application, with the published authorization number CN220526844U, discloses a bridge-shaped contact and circuit breaker. The bridge-shaped contact includes a bracket, a conductive sheet, and an elastic pressure plate. The conductive sheet is mounted on the bracket and is used to connect the busbar of the circuit breaker body to the busbar of the drawer. The elastic pressure plate has a herringbone slope and includes pressing portions located at two opposing edges and a ridge located in the middle. The ridge is connected to the bracket, and the pressing portion abuts against both ends of the conductive sheet. The bridge-shaped contact provided in this application can improve the contact effect between the conductive sheet and the busbar, which is beneficial for increasing the service life of the circuit breaker.

[0004] When the above device is implemented, the conductive sheet is supported by the elastic pressure plate, and then the conductive sheet clamps the drawer seat busbar. However, the existing contact structure for a 1.5kV DC circuit breaker cannot adjust the position of the conductive sheet, resulting in the inability to clamp drawer seat busbars of different sizes. Utility Model Content

[0005] In view of the deficiencies of the prior art, the present invention provides a contact structure for a 1.5kV DC circuit breaker, which overcomes the deficiencies of the prior art and aims to solve the problems in the background technology.

[0006] In order to achieve the above-mentioned objectives, the present application adopts the following technical solutions: a contact structure for a 1.5kV DC circuit breaker, comprising an upper conductive plate, a lower conductive plate being provided at the bottom of the upper conductive plate, a first elastic support plate and a second elastic support plate being provided between the lower conductive plate and the upper conductive plate, two of each of the first elastic support plate and the second elastic support plate being provided, and being symmetrically distributed between the lower conductive plate and the upper conductive plate, a positioning mechanism being provided at the connection between the first elastic support plate and the second elastic support plate and the lower conductive plate and the upper conductive plate, an adjustment mechanism being provided between the first elastic support plate and the second elastic support plate, the adjustment mechanism comprising a sleeve rod, the sleeve rod being fixedly connected to the second elastic support plate, a moving rod being slidably connected to the interior of the sleeve rod, a bolt being threadedly connected to the interior of the moving rod, and a limiting hole being provided on the surface of the sleeve rod.

[0007] As a preferred embodiment, the positioning mechanism includes a slider, which is fixedly connected to the first elastic support plate, and is slidably connected to the upper conductive plate. A spring is fixedly connected to the inside of the slider, and a positioning block is fixedly connected to one side of the spring, and the positioning block is slidably connected to the slider.

[0008] By adopting the above technical solution, the first elastic support plate and the upper conductive plate are connected by inserting the slider into the interior of the upper conductive plate, the positioning block is supported by the spring, and the slider is positioned by the positioning block, so that the first elastic support plate and the upper conductive plate can be better connected.

[0009] As a preferred embodiment, through holes are provided on the surfaces of the upper conductive sheet and the lower conductive sheet, and the through holes are adapted to fit the positioning blocks.

[0010] By adopting the above technical solution, through holes are opened on the surfaces of the upper conductive sheet and the lower conductive sheet, and the through holes are adapted to the positioning blocks, and the positioning blocks are then limited by the through holes, which can better limit the positioning blocks.

[0011] As a preferred embodiment, a plurality of ventilation holes are provided on the surfaces of the upper conductive sheet and the lower conductive sheet, and the plurality of ventilation holes are evenly distributed on the surfaces of the upper conductive sheet and the lower conductive sheet.

[0012] By adopting the above technical solution, ventilation holes are evenly distributed on the surface of the upper conductive sheet and the lower conductive sheet, and ventilation is then carried out through the ventilation holes to dissipate heat from the upper conductive sheet and the lower conductive sheet, which can better dissipate heat from the upper conductive sheet and the lower conductive sheet.

[0013] As a preferred embodiment, heat dissipation holes are provided on the surfaces of the first elastic support plate and the second elastic support plate, and the heat dissipation holes are evenly distributed on the surfaces of the first elastic support plate and the second elastic support plate.

[0014] By adopting the above technical solution, heat dissipation holes are provided on the surfaces of the first elastic support plate and the second elastic support plate, and the heat dissipation holes further dissipate heat to the upper conductive sheet and the lower conductive sheet, thereby better dissipating heat to the upper conductive sheet and the lower conductive sheet.

[0015] As a preferred embodiment, a plurality of anti-sliding blocks are fixedly connected to the surfaces of the upper conductive sheet and the lower conductive sheet, and the anti-sliding blocks are evenly distributed on the surfaces of the upper conductive sheet and the lower conductive sheet, and the anti-sliding blocks are semicircular.

[0016] By adopting the above technical solution, the anti-sliding blocks are evenly distributed on the surfaces of the upper conductive sheet and the lower conductive sheet, and the anti-sliding blocks increase the friction between the upper conductive sheet and the lower conductive sheet and the drawer seat busbar, so that the drawer seat busbar can be better clamped.

[0017] As a preferred embodiment, the first elastic support plate and the second elastic support plate are arranged obliquely between the upper conductive sheet and the lower conductive sheet.

[0018] By adopting the above technical solution, the first elastic support plate and the second elastic support plate are arranged obliquely between the upper conductive sheet and the lower conductive sheet, so that the upper conductive sheet and the lower conductive sheet can be better supported.

[0019] As a preferred embodiment, eight limiting holes are provided, and the eight limiting holes are symmetrically distributed on the surface of the sleeve rod, and the limiting holes are adapted to the bolts.

[0020] By adopting the above technical solution, the bolt is limited by the limiting hole, and then the bolt is rotated to enter the different limiting holes to fix the moving rod, which can better fix the moving rod.

[0021] Beneficial effects of this application:

[0022] 1. This contact structure for a 1.5kV DC circuit breaker is provided with a movable rod, a sleeve rod, a limiting hole, and a bolt. The movable rod is pulled to move the movable rod inside the sleeve rod to adjust the position of the upper conductive piece. The bolt is then rotated to pass through the interior of the sleeve rod and into the interior of the movable rod to position the movable rod. This avoids the problem of the existing contact structure for a 1.5kV DC circuit breaker that the position of the conductive piece cannot be adjusted, resulting in an inability to clamp drawer busbars of different sizes, thereby improving practicality.

[0023] 2. This contact structure for a 1.5kV DC circuit breaker provides a slider, a positioning block, and a spring. The slider is inserted into the interior of the upper conductive plate to connect the first elastic support plate and the upper conductive plate. The positioning block is then supported by the spring, and the positioning block positions the slider. This avoids the problem of the existing contact structure for a 1.5kV DC circuit breaker that the slider cannot be positioned, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the front structure of this application;

[0025] Figure 2 This is a schematic diagram of the structure of the regulating mechanism of this application;

[0026] Figure 3 This is a schematic diagram of the positioning mechanism structure of this application;

[0027] Figure 4 This is a schematic diagram of the upper conductive sheet structure of this application.

[0028] Numbers in the figure: 1. Upper conductive sheet; 2. Adjustment mechanism; 21. Moving rod; 22. Sleeve rod; 23. Limiting hole; 24. Bolt; 3. Positioning mechanism; 31. Slider; 32. Positioning block; 33. Spring; 4. First elastic support plate; 5. Lower conductive sheet; 6. Ventilation hole; 7. Heat dissipation hole; 8. Anti-sliding block; 9. Second elastic support plate. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0030] Reference Figure 1-Figure 4 , a contact structure for a 1.5kV DC circuit breaker, comprising an upper conductive sheet 1, a lower conductive sheet 5 is provided at the bottom of the upper conductive sheet 1, a first elastic support plate 4 and a second elastic support plate 9 are provided between the lower conductive sheet 5 and the upper conductive sheet 1, two of each of the first elastic support plate 4 and the second elastic support plate 9 are provided, and are symmetrically distributed between the lower conductive sheet 5 and the upper conductive sheet 1, a positioning mechanism 3 is provided at the connection between the first elastic support plate 4 and the second elastic support plate 9 and the lower conductive sheet 5 and the upper conductive sheet 1, the positioning mechanism 3 comprises a slider 31, the slider 31 is fixedly connected to the first elastic support plate 4, the slider 31 is slidably connected to the upper conductive sheet 1, a spring 33 is fixedly connected to the inside of the slider 31, a positioning block 32 is fixedly connected to one side of the spring 33, and the positioning block 32 is slidably connected to the slider 31; by inserting the slider 31 into the interior of the upper conductive sheet 1 to connect the first elastic support plate 4 and the upper conductive sheet 1, and then supporting the positioning block 32 by the spring 33, and then positioning the slider 31 by the positioning block 32, the first elastic support plate 4 and the upper conductive sheet 1 can be better connected.

[0031] Reference Figure 1-Figure 4 The surfaces of the upper conductive sheet 1 and the lower conductive sheet 5 are both provided with through holes, which are adapted to the positioning block 32; the surfaces of the upper conductive sheet 1 and the lower conductive sheet 5 are both provided with through holes, which are adapted to the positioning block 32, and the positioning block 32 is limited by the through holes, which can better limit the positioning block 32.

[0032] Reference Figure 1-Figure 2 An adjustment mechanism 2 is provided between the first elastic support plate 4 and the second elastic support plate 9. The adjustment mechanism 2 includes a sleeve rod 22, which is fixedly connected to the second elastic support plate 9. The sleeve rod 22 is internally slidably connected to a moving rod 21, and the internal thread of the moving rod 21 is connected to a bolt 24. A limiting hole 23 is provided on the surface of the sleeve rod 22.

[0033] Reference Figure 1, a plurality of ventilation holes 6 are provided on the surface of the upper conductive sheet 1 and the lower conductive sheet 5, and the ventilation holes 6 are evenly distributed on the surface of the upper conductive sheet 1 and the lower conductive sheet 5; the ventilation holes 6 are evenly distributed on the surface of the upper conductive sheet 1 and the lower conductive sheet 5, and ventilation is performed by the ventilation holes 6 to dissipate heat from the upper conductive sheet 1 and the lower conductive sheet 5, which can better dissipate heat from the upper conductive sheet 1 and the lower conductive sheet 5.

[0034] Reference Figure 2-Figure 3 The surfaces of the first elastic support plate 4 and the second elastic support plate 9 are both provided with heat dissipation holes 7, and the heat dissipation holes 7 are evenly distributed on the surfaces of the first elastic support plate 4 and the second elastic support plate 9; the surfaces of the first elastic support plate 4 and the second elastic support plate 9 are both provided with heat dissipation holes 7, and the heat dissipation holes 7 further dissipate heat for the upper conductive sheet 1 and the lower conductive sheet 5, which can better dissipate heat for the upper conductive sheet 1 and the lower conductive sheet 5.

[0035] Reference Figure 4 , several anti-slide blocks 8 are fixedly connected to the surface of the upper conductive sheet 1 and the lower conductive sheet 5, and the anti-slide blocks 8 are evenly distributed on the surface of the upper conductive sheet 1 and the lower conductive sheet 5, and the anti-slide blocks 8 are semicircular; by evenly distributing the anti-slide blocks 8 on the surface of the upper conductive sheet 1 and the lower conductive sheet 5, and then increasing the friction between the upper conductive sheet 1 and the lower conductive sheet 5 and the drawer seat busbar by the anti-slide blocks 8, the drawer seat busbar can be better clamped.

[0036] Reference Figure 1-Figure 3 The first elastic support plate 4 and the second elastic support plate 9 are arranged obliquely between the upper conductive sheet 1 and the lower conductive sheet 5; by arranging the first elastic support plate 4 and the second elastic support plate 9 obliquely between the upper conductive sheet 1 and the lower conductive sheet 5, the upper conductive sheet 1 and the lower conductive sheet 5 can be better supported.

[0037] Reference Figure 1-Figure 2 There are eight limiting holes 23, which are symmetrically distributed on the surface of the sleeve rod 22. The limiting holes 23 are adapted to the bolts 24. The bolts 24 are limited by the limiting holes 23, and then the bolts 24 are rotated so that the bolts 24 enter different limiting holes 23 to fix the moving rod 21, which can better fix the moving rod 21.

[0038] Working principle: By pulling the moving rod 21, the moving rod 21 moves inside the sleeve rod 22 to adjust the position of the upper conductive sheet 1, and then rotating the bolt 24 to make the bolt 24 pass through the inside of the sleeve rod 22 and enter the inside of the moving rod 21 to position the moving rod 21, and then inserting the slider 31 into the inside of the upper conductive sheet 1 to connect the first elastic support plate 4 and the upper conductive sheet 1, and then the positioning block 32 is supported by the spring 33, and then the positioning block 32 positions the slider 31, and then the ventilation holes 6 are evenly distributed on the surface of the upper conductive sheet 1 and the lower conductive sheet 5, and then the ventilation holes 6 are ventilated to dissipate heat to the upper conductive sheet 1 and the lower conductive sheet 5, and then the first elastic support plate 4 and the second elastic support plate 9 are both provided with heat dissipation holes 7, and then the heat dissipation holes 7 further dissipate heat to the upper conductive sheet 1 and the lower conductive sheet 5, and then the upper conductive sheet 1 and the lower conductive sheet 5 clamp the drawer seat busbar.

[0039] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "two ends," "one end," "the other end," and the like, indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0041] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are merely illustrative and are not intended to limit the scope of protection of the present invention. Those skilled in the art may make various modifications and variations to the present invention based on the spirit and principles of the present invention, and such modifications and variations are also within the scope of the present invention.

Claims

1. A contact structure for a 1.5 kV DC circuit breaker, comprising an upper conductive sheet (1), characterized in that: A lower conductive sheet (5) is provided at the bottom of the upper conductive sheet (1), and a first elastic support plate (4) and a second elastic support plate (9) are provided between the lower conductive sheet (5) and the upper conductive sheet (1), and two of each of the first elastic support plate (4) and the second elastic support plate (9) are provided and are symmetrically distributed between the lower conductive sheet (5) and the upper conductive sheet (1), and a positioning mechanism (3) is provided at the connection between the first elastic support plate (4) and the second elastic support plate (9) and the lower conductive sheet (5) and the upper conductive sheet (1), and an adjustment mechanism (2) is provided between the first elastic support plate (4) and the second elastic support plate (9), and the adjustment mechanism (2) comprises a sleeve rod (22), the sleeve rod (22) is fixedly connected to the second elastic support plate (9), the interior of the sleeve rod (22) is slidably connected to a moving rod (21), the interior of the moving rod (21) is threadedly connected to a bolt (24), and a limiting hole (23) is provided on the surface of the sleeve rod (22).

2. The contact structure for a 1.5kV DC circuit breaker according to claim 1, characterized in that: The positioning mechanism (3) comprises a slider (31), the slider (31) being fixedly connected to the first elastic support plate (4), the slider (31) being slidably connected to the upper conductive sheet (1), a spring (33) being fixedly connected inside the slider (31), a positioning block (32) being fixedly connected to one side of the spring (33), and the positioning block (32) being slidably connected to the slider (31).

3. The contact structure for a 1.5kV DC circuit breaker according to claim 2, characterized in that: Through holes are provided on the surfaces of the upper conductive sheet (1) and the lower conductive sheet (5), and the through holes are adapted to the positioning blocks (32).

4. The contact structure for a 1.5kV DC circuit breaker according to claim 1, characterized in that: The surfaces of the upper conductive sheet (1) and the lower conductive sheet (5) are both provided with a plurality of ventilation holes (6), and the plurality of ventilation holes (6) are evenly distributed on the surfaces of the upper conductive sheet (1) and the lower conductive sheet (5).

5. The contact structure for a 1.5kV DC circuit breaker according to claim 1, characterized in that: The surfaces of the first elastic support plate (4) and the second elastic support plate (9) are both provided with heat dissipation holes (7), and the heat dissipation holes (7) are evenly distributed on the surfaces of the first elastic support plate (4) and the second elastic support plate (9).

6. The contact structure for a 1.5kV DC circuit breaker according to claim 1, characterized in that: A plurality of anti-sliding blocks (8) are fixedly connected to the surfaces of the upper conductive sheet (1) and the lower conductive sheet (5); the plurality of anti-sliding blocks (8) are evenly distributed on the surfaces of the upper conductive sheet (1) and the lower conductive sheet (5); and the anti-sliding blocks (8) are semicircular.

7. The contact structure for a 1.5kV DC circuit breaker according to claim 1, characterized in that: The first elastic support plate (4) and the second elastic support plate (9) are arranged obliquely between the upper conductive sheet (1) and the lower conductive sheet (5).

8. The contact structure for a 1.5kV DC circuit breaker according to claim 1, characterized in that: There are eight limiting holes (23), which are symmetrically distributed on the surface of the sleeve rod (22). The limiting holes (23) are adapted to the bolts (24).

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