一种负荷开关及电表

Abstract

本申请涉及低压电器技术领域，具体涉及一种负荷开关及电表，包括壳体、触头组件、电磁线圈以及灭弧组件；所述壳体内划分出第一安装位、第二安装位与第三安装位；第一安装位与第二安装位沿第一方向依次排布，所述第二安装位与第三安装位沿第二方向依次排布，所述电磁线圈布置于第一安装位，所述灭弧组件布置于第二安装位，所述触头组件布置于第三安装位；所述灭弧组件背离所述第一安装位一侧贴近所述壳体内壁。本申请能够在不增大负荷开关体积条件下，优化结构布局，使得灭弧组件具有较大的布置空间，从而增强灭弧性能。

Claims

1. A load break switch characterized by, The device includes a housing (100), a contact assembly, an electromagnetic coil (101), and an arc-extinguishing assembly (102). The housing (100) is divided into a first mounting position, a second mounting position, and a third mounting position. The first mounting position and the second mounting position are arranged sequentially along a first direction (103), and the second mounting position and the third mounting position are arranged sequentially along a second direction (106). The electromagnetic coil (101) is arranged at the first mounting position, the arc-extinguishing assembly (102) is arranged at the second mounting position, and the contact assembly is arranged at the third mounting position. The arc-extinguishing assembly (102) is located on the side away from the first mounting position and close to the inner wall of the housing (100) along the second direction (106), and / or, the arc-extinguishing assembly (102) is located on the side away from the third mounting position and close to the inner wall of the housing (100) along the first direction (103).

2. The load break switch according to claim 1, characterized in that The contact assembly includes a moving contact (107), a stationary contact (109), a moving contact lead-out piece (104), and a stationary contact lead-out piece (105); the moving contact (107) and the stationary contact (109) are arranged along the first direction (103); the first end of the moving contact (107) is electrically connected to the moving contact lead-out piece (104), and the second end of the moving contact (107) rotates around the first end under the drive of the electromagnetic coil (101) to contact or separate from the stationary contact (109).

3. The load break switch according to claim 2, characterized in that The moving contact (107) is located between the arc extinguishing assembly (102) and the moving contact lead-out piece (104); the stationary contact lead-out piece (105) includes a first current-passing part (108) connected to the stationary contact (109); when the moving contact (107) contacts the stationary contact (109), the first current-passing part (108) is located on the side of the moving contact (107) away from the stationary contact (109), and the current direction of the first current-passing part (108) is opposite to that of the moving contact (107).

4. The load break switch according to claim 3, characterized in that The stationary contact lead-out piece (105) also includes a second current-passing part (110) connected to the first current-passing part (108); when the moving contact (107) contacts the stationary contact (109), the second current-passing part (110) is located on the side of the moving contact (107) closer to the stationary contact (109), and the current direction of the second current-passing part (110) is the same as that of the moving contact (107).

5. The load break switch of claim 1, wherein, The axial direction of the electromagnetic coil (101) is consistent with the first direction (103); the arc extinguishing assembly (102) includes a plurality of arc extinguishing grid plates (111) arranged at intervals along the first direction (103); wherein, the arc extinguishing grid plate (111) at the first end of the arc extinguishing assembly (102) is close to the electromagnetic coil (101), and the arc extinguishing grid plate (111) at the second end of the arc extinguishing assembly (102) is close to the inner wall of the housing (100).

6. The load break switch according to claim 4, characterized in that It also includes a U-shaped magnetizing structure (112); in the closed position, the moving contact (107) passes through the opening of the U-shaped magnetizing structure (112).

7. The load break switch according to claim 6, characterized in that The U-shaped magnetizing structure (112) includes an L-shaped structure (114) and a side wall structure (115); the L-shaped structure (114) and the side wall structure (115) are connected to form the U-shaped magnetizing structure (112).

8. The load switch according to claim 7, characterized in that, The side wall structure (115) has an extension (113) on one side, and the extension (113) and the second flow passage (110) are arranged along the first direction (103).

9. The load break switch of claim 7, wherein, The stationary contact lead-out piece (105) also includes a first bending portion and a second bending portion respectively connected to the two ends of the first flow passage (108); the first bending portion, the second bending portion and the first flow passage (108) form a U-shaped bending structure (116), the U-shaped bending structure (116) and the L-shaped structural member (114) are located on the same side of the moving contact (107); and one end of the L-shaped structural member (114) is placed in the opening of the U-shaped bending structure (116), and the other end extends toward the second flow passage (110).

10. A load break switch according to any of claims 6-9, characterised in that The moving contact (107) is provided with a metal structural component (117); the metal structural component (117) is located on the bottom side of the moving contact (107) away from the U-shaped magnetizing structural component (112) and is correspondingly arranged with the U-shaped magnetizing structural component (112).

11. The load break switch according to claim 10, characterized in that The metal structural component (117) is provided with a hinge (118); it also includes an armature assembly and a connecting rod, one end of which is connected to the hinge (118) and the other end is connected to the armature assembly; the electromagnetic coil (101) drives the armature assembly to rotate and drives the moving contact (107) to move through the connecting rod.

12. The load break switch according to any one of claims 2-4, characterized in that It also includes two terminals (119) that are respectively connected to the moving contact lead-out piece (104) and the stationary contact lead-out piece (105); the moving contact lead-out piece (104), the stationary contact lead-out piece (105), and the arc extinguishing assembly (102) are arranged in sequence along the second direction (106), and the two terminals (119) are located on the same side of the housing (100).

13. An electricity meter characterized by It includes a meter housing and a load switch as described in any one of claims 1-12, wherein the load switch is disposed inside the meter housing.

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