A contactor auxiliary interlocking mechanism

Abstract

The present invention discloses a contactor auxiliary interlocking mechanism, comprising a yoke assembly, a linkage assembly provided at the top of the yoke assembly, an auxiliary interlocking assembly provided at each end of the base of the yoke assembly corresponding to the linkage assembly, and the tops of the auxiliary interlocking assemblies are offset in a direction away from the yoke assembly. The present invention discloses a contactor auxiliary interlocking mechanism, which can keep the quick-acting switch away from the yoke assembly when installed by providing a Z-shaped interlocking bracket, thereby increasing the creepage distance to solve the product's voltage resistance problem and facilitating parts processing; the provided Z-shaped wiring plug facilitates wiring and can increase the product's electrical insulation distance; and the provided adjustment gasket can be increased or decreased in time according to the interlocking action to ensure the gap between the quick-acting pressure rod and the linkage pressure rod, thereby ensuring reliable interlocking action.

Description

Technical Field

[0001] The invention belongs to the technical field of low-voltage electrical appliances, and in particular relates to a contactor auxiliary interlocking mechanism. Background Art

[0002] The auxiliary interlock mechanism, consisting of an interlock bracket, a snap-action switch, and related components, is installed on the contactor as a control module within the contactor's control circuit. As a component of the contactor, it utilizes external forces acting on the contactor body to switch between normally open and normally closed contacts. However, the existing auxiliary interlock assembly structure used in existing contactors is inconvenient to install and wire, resulting in low reliability and a short service life. Summary of the Invention

[0003] The object of the present invention is to provide a contactor auxiliary interlocking mechanism, which can effectively improve the working reliability of the contactor.

[0004] The technical solution adopted by the present invention is: a contactor auxiliary interlocking mechanism, including a yoke assembly, a linkage assembly is provided at the top of the yoke assembly, and an auxiliary interlocking assembly is provided at each end of the base of the yoke assembly corresponding to the linkage assembly, and the top ends of the auxiliary interlocking assemblies are offset in the direction away from the yoke assembly.

[0005] The present invention is also characterized in that:

[0006] The auxiliary interlock assembly includes a Z-shaped interlock bracket whose bottom end is fixed to the base of the yoke assembly. The top of the interlock bracket is away from the yoke assembly. A snap-action switch is fixed below the top of the interlock bracket away from the yoke assembly through a snap-action fastening screw. A snap-action pressure rod is provided in the snap-action switch, the top of which extends upward from the interlock bracket. A plurality of Z-shaped wiring plugs are fixed to the wiring terminals of the snap-action switch.

[0007] The bottom surface of the interlocking bracket is folded back in the direction of increasing thickness. Both ends of the bottom surface of the interlocking bracket are provided with mounting holes that penetrate downward to the base of the yoke iron assembly, and the mounting holes are equipped with bracket fastening screws.

[0008] An adjusting gasket is provided between the bottom end of the interlocking bracket and the base of the yoke assembly.

[0009] A visual window is provided on the middle surface of the interlocking bracket.

[0010] Two adjacent sides of the interlocking bracket are perpendicular to each other, and two adjacent sides of the wiring plug are perpendicular to each other.

[0011] The linkage assembly includes a linkage pressure rod with both ends located above the fast-moving pressure rods of the two auxiliary interlocking assemblies. A linkage block that moves up and down along the top opening of the yoke assembly is threadedly connected to the center of the linkage pressure rod through a linkage block fastening screw.

[0012] The beneficial effects of the present invention are as follows: the present invention provides a contactor auxiliary interlocking mechanism, which can keep the quick-acting switch away from the yoke iron assembly when installed by arranging a Z-shaped interlocking bracket, thereby increasing the creepage distance to solve the product voltage resistance problem and also facilitate part processing; the Z-shaped wiring plug-in makes wiring convenient and can increase the electrical insulation distance of the product; the adjustment gasket is provided, which can be increased or decreased in time according to the interlocking action situation, thereby ensuring the gap between the quick-acting pressure rod and the linkage pressure rod, and ensuring reliable interlocking action. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a contactor auxiliary interlocking mechanism of the present invention;

[0014] Figure 2 It is a structural schematic diagram of a yoke assembly in a contactor auxiliary interlocking mechanism of the present invention;

[0015] Figure 3 It is a structural schematic diagram of an auxiliary interlocking assembly in a contactor auxiliary interlocking mechanism of the present invention;

[0016] Figure 4 It is a structural schematic diagram of an interlocking bracket in a contactor auxiliary interlocking mechanism of the present invention;

[0017] Figure 5 This is a structural diagram of a wiring plug in a contactor auxiliary interlocking mechanism of the present invention;

[0018] Figure 6 It is a structural schematic diagram of a contactor adopting the auxiliary interlocking mechanism of the present invention.

[0019] In the figure, 1. Yoke assembly, 2. Linkage pressure rod, 3. Linkage block, 4. Interlock bracket, 5. Snap-action switch, 6. Wiring plug, 7. Snap-action fastening screw, 8. Snap-action pressure rod, 9. Adjustment gasket, 10. Bracket fastening screw, 11. Linkage block fastening screw, 12. Linkage assembly, 13. Auxiliary interlock assembly, 14. Visual window. DETAILED DESCRIPTION

[0020] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] The present invention provides a contactor auxiliary interlocking mechanism, such as Figures 1 to 6 As shown, it includes a yoke assembly 1, a linkage assembly 12 is provided at the top of the yoke assembly 1, and an auxiliary interlocking assembly 13 is provided at each end of the base of the yoke assembly 1 corresponding to the linkage assembly 12, and the top of the auxiliary interlocking assembly 13 is offset in the direction away from the yoke assembly 1.

[0022] The auxiliary interlock assembly 13 includes a Z-shaped interlock bracket 4, the bottom end of which is fixed to the base of the yoke assembly 1. An adjustment gasket 9 is disposed between the bottom end of the interlock bracket 4 and the base of the yoke assembly 1. The bottom surface of the interlock bracket 4 is bent back in the direction of increasing thickness. Mounting holes are provided at both ends of the bottom surface of the interlock bracket 4, extending downwardly to the base of the yoke assembly 1. Each mounting hole is fitted with a bracket fastening screw 10. The top of the interlock bracket 4 is remote from the yoke assembly 1. A snap-action switch 5 is secured below the top end of the interlock bracket 4 on the side remote from the yoke assembly 1 via a snap-action fastening screw 7. The snap-action switch 5 includes a snap-action pressure rod 8, the top end of which extends upward from the interlock bracket 4. Multiple Z-shaped wiring plugs 6 are secured to the wiring terminals of the snap-action switch 5. The adjacent sides of the interlock bracket 4 are preferably perpendicular to each other, and the adjacent sides of the wiring plugs 6 are preferably perpendicular to each other. A viewing window 14 is provided on the middle surface of the interlock bracket 4.

[0023] The linkage assembly 12 includes a linkage pressure rod 2 whose two ends are respectively located above the high-speed dynamic pressure rod 8 of the two auxiliary interlocking assemblies 13. The linkage block 3 that moves up and down along the top opening of the yoke assembly 1 is threadedly connected to the bottom center of the linkage pressure rod 2 through a linkage block fastening screw 11.

[0024] During operation, the linkage pressure rod 2 in the linkage assembly 12 is connected to the contactor contact mechanism. When the contactor coil is powered on or off, the linkage assembly 12 drives the contactor contact mechanism to move up and down. The quick-acting fastening screw 7 fastens the quick-acting switch 5 to the interlocking bracket 4 to form an auxiliary interlocking assembly 13. Four mounting holes are provided at the base of the yoke assembly 1. The two auxiliary interlocking assemblies 13 can be fixed to the two ends of the yoke assembly 1 using the bracket fastening screws 10. When the contactor coil is energized, the linkage assembly 12 moves downward under the action of electromagnetic attraction, and the linkage pressure rod 2 presses the quick-acting pressure rod 8 in the quick-acting switch 5 downward, thereby making the internal contacts of the quick-acting switch 5 reliably switched on and off. When the contactor coil is de-energized, the linkage assembly 12 moves upward, and the quick-acting switch 5 is reset. The wiring plug 6 is set to a Z-shaped plug, which is installed on the quick-acting switch 5 by screws and serves as the wiring for the auxiliary interlocking mechanism. In order to ensure that the auxiliary interlocking assembly 13 works reliably, an adjusting gasket 9 is provided. The adjusting gasket 9 can be added to the lower part of the interlocking bracket 4 , and the adjusting gasket 9 can be increased or decreased according to the working condition of the auxiliary interlocking.

[0025] Through the above-mentioned method, the present invention provides a contactor auxiliary interlock mechanism, which can realize the mutual conversion between the normally open and normally closed contacts of the auxiliary interlock component mechanism through the action of external force when in use, has high electric stability, and specifically has the following characteristics:

[0026] 1. Two auxiliary interlocking assemblies 13 are arranged on both sides of the yoke assembly 1 to ensure movement balance.

[0027] 2. The design of the adjustment gasket 9 can be increased or decreased in time according to the interlocking action to ensure the gap between the quick-acting pressure rod 8 and the linkage pressure rod 2 to ensure reliable interlocking action.

[0028] 3. Eight Z-shaped wiring plugs 6 are designed to be installed on the quick-action switch 5, which makes wiring convenient and can increase the electrical insulation distance of the product.

[0029] 4. The yoke assembly 1 is provided with four screw mounting holes, which are fixed with screws, making the operation simple and convenient.

[0030] 5. The interlock bracket 4 is designed in a Z-shape to facilitate component processing. A square through-hole in the center of the part serves as a viewing window 14, reducing component mass and facilitating observation of the internal assembly of the contactor electromagnet. The interlock bracket 4 is folded back at the attachment point to the yoke assembly 1 to increase component thickness and the number of threaded turns in the mounting hole, ensuring a stable and reliable installation and addressing screw installation issues. The Z-shape allows the snap-action switch 5 to be installed away from the yoke assembly 1, increasing creepage distance and addressing voltage resistance issues.

Claims

1. A contactor auxiliary interlocking mechanism, characterized in that: It comprises a yoke assembly (1), a linkage assembly (12) being provided at the top end of the yoke assembly (1), an auxiliary interlocking assembly (13) being provided at each end of the base of the yoke assembly (1) corresponding to the linkage assembly (12), and the top ends of the auxiliary interlocking assemblies (13) being offset in a direction away from the yoke assembly (1); The auxiliary interlocking assembly (13) includes a Z-shaped interlocking bracket (4) whose bottom end is fixed to the base of the yoke assembly (1), an adjusting gasket (9) is provided between the bottom end of the interlocking bracket (4) and the base of the yoke assembly (1), the top end of the interlocking bracket (4) is away from the yoke assembly (1), a quick-acting switch (5) is fixed below the top end of the interlocking bracket (4) on the side away from the yoke assembly (1) through a quick-acting fastening screw (7), a quick-acting pressure rod (8) is provided in the quick-acting switch (5), the top end of which extends upward from the interlocking bracket (4), and a plurality of Z-shaped wiring plugs (6) are fixed to the wiring terminal of the quick-acting switch (5); The linkage assembly (12) includes a linkage pressure rod (2) whose two ends are respectively located above the medium-speed dynamic pressure rods (8) of the two auxiliary interlocking assemblies (13). A linkage block (3) that moves up and down along the top opening of the yoke assembly (1) is threadedly connected to the bottom of the center of the linkage pressure rod (2) through a linkage block fastening screw (11).

2. A contactor auxiliary interlocking mechanism according to claim 1, characterized in that: The bottom surface of the interlocking bracket (4) is folded back in the direction of increasing thickness, and both ends of the bottom surface of the interlocking bracket (4) are provided with mounting holes that pass downward to the base of the yoke iron assembly (1), and bracket fastening screws (10) are provided in the mounting holes.

3. A contactor auxiliary interlocking mechanism according to claim 1, characterized in that: A visual window (14) is provided on the middle surface of the interlocking bracket (4).

4. A contactor auxiliary interlocking mechanism according to claim 1, characterized in that: The two adjacent sides of the interlocking bracket (4) are perpendicular to each other, and the two adjacent sides of the wiring plug (6) are perpendicular to each other.

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