Wire inlet and outlet end structure of contact mechanism of power supply change-over switch

Abstract

The utility model provides a wire inlet and outlet end structure of a contact mechanism of a power supply change-over switch. The wire inlet and outlet end structure comprises a wire inlet end insulating partition plate and a wire outlet end busbar, static contact mounting plates are arranged on the two sides of the wire inlet end insulating partition plate, groove structures, namely a first groove structure and a second groove structure, are formed in the surfaces of the static contact mounting plates, and a pair of first static contacts are mounted in the first groove structure and the second groove structure respectively; a pair of second static contacts are integrally formed on the wire outlet end busbar, and the second static contacts adopt the structural form of the same wire outlet end; according to the insulating partition plate structure, the electrical gap and the creepage distance between the two wire inlet end contacts can be effectively increased under the condition that the appearance size is not increased, and the insulating strength of the insulating partition plate structure is improved; according to the wire outlet end busbar structure, the design that the main circuit and the standby circuit adopt the same wire outlet end is met by bending the copper bars differently, the defects that the product is small in appearance and limited in internal space are effectively overcome, and meanwhile the part cost of the product is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of contact mechanisms, in particular to an inlet and outlet terminal structure of a contact mechanism of a power conversion switch. Background Art

[0002] In the power conversion switch device, the main and standby conductive circuits have rated currents at the incoming terminals. At this time, the fixed structure between the two circuits plays a very important role. It must ensure good insulation between the two circuits to prevent short-circuit accidents. However, the existing structural methods are less effective in this regard. Due to space limitations, the outgoing terminal does not have a convergence function, and users usually need to converge by themselves, which increases the complexity of use. Therefore, it is necessary to study an inlet and outlet terminal structure of a power conversion switch contact mechanism to solve these problems in existing products. Summary of the invention

[0003] The utility model solves the technical problem by adopting the following technical solutions:

[0004] The inlet and outlet terminal structure of the power conversion switch contact mechanism includes an inlet terminal insulating partition and an outlet terminal busbar;

[0005] Static contact mounting plates are arranged on both sides of the inlet end insulating partition, and groove structures are formed on the surface of the static contact mounting plates, which are respectively a first groove structure and a second groove structure, and a pair of first static contacts are respectively installed in the first groove structure and the second groove structure;

[0006] The outgoing terminal busbar is integrally formed to form a pair of second stationary contacts, and the second stationary contacts adopt the same outgoing terminal structure.

[0007] Furthermore, the outgoing terminal busbar is formed into an integral structure by bending the copper busbar in different ways.

[0008] Furthermore, two static contact points of a pair of the second static contacts are distributed on both sides of the plane where the outlet end of the second static contact is located.

[0009] Furthermore, the first groove structure and the second groove structure can ensure that the incoming wire ends of the pair of first static contacts are on the same plane after installation, and the static contact points of the pair of first static contacts are distributed on both sides of the plane where the incoming wire ends of the first static contacts are located.

[0010] Furthermore, the static contact points of a pair of the first static contacts are symmetrical structures relative to the plane where the incoming line end of the first static contact is located.

[0011] Furthermore, an insulating partition structure is provided between the first groove structure and the second groove structure.

[0012] Furthermore, the groove structure may be an “L”-shaped groove structure or a “T”-shaped groove structure.

[0013] Furthermore, the incoming line end insulating partition is made of electrical insulating material.

[0014] The advantages and positive effects of the utility model are:

[0015] The insulating partition structure of the utility model can effectively increase the electrical gap and creepage distance between the two incoming line contacts without increasing the overall dimensions, thereby improving the insulation strength thereof; the busbar structure at the outgoing line meets the design of using the same outgoing line for the main and spare lines by bending the copper busbar differently, thereby effectively making up for the disadvantages of the small product appearance and limited internal space, and at the same time, also reducing the cost of product parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The technical solution of the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments, but it should be understood that these drawings are designed only for the purpose of explanation and are not intended to limit the scope of the utility model. In addition, unless otherwise specified, these drawings are only intended to conceptually illustrate the structural configurations described herein and are not necessarily drawn to scale.

[0017] Figure 1 It is a structural schematic diagram of the inlet end insulating partition of the contact mechanism of the power conversion switch of the utility model;

[0018] Figure 2 It is a structural diagram of the output terminal busbar of the contact mechanism of the power conversion switch of the utility model;

[0019] Figure 3 The utility model is a schematic structural diagram of an inlet-end insulating partition and a first stationary contact of a power conversion switch contact mechanism. DETAILED DESCRIPTION

[0020] First of all, it should be noted that the specific structure, features and advantages of the present invention will be specifically described below by way of example, but all descriptions are only for illustration and should not be understood as limiting the present invention in any way. In addition, any single technical feature described or implied in the embodiments mentioned herein, or any single technical feature displayed or implied in the drawings, can still be combined or deleted between these technical features (or their equivalents) to obtain more other embodiments of the present invention that may not be directly mentioned in this document. In addition, in order to simplify the drawings, the same or similar technical features may be marked in only one place in the same drawing.

[0021] The following is combined Figures 1 to 3 To specifically illustrate the utility model.

[0022] The inlet and outlet terminal structure of the power conversion switch contact mechanism provided in this embodiment includes an inlet terminal insulating partition 1 and an outlet terminal bus; wherein the inlet terminal insulating partition is made of electrical insulating material.

[0023] Both sides of the inlet end insulation partition are provided with a stationary contact mounting plate 101, and a groove structure is formed on the surface of the stationary contact mounting plate, such as Figure 3 As shown, they are respectively a first groove structure 102 and a second groove structure (cannot be shown in the figure due to viewing angle problems), a pair of first static contacts are respectively installed in the first groove structure and the second groove structure, wherein the pair of first static contacts 2 are a centrally symmetrical structure;

[0024] The first groove structure and the second groove structure can make the inlet ends 201 of the pair of first static contacts 2 on the same plane after installation, and the static contact points 202 of the pair of first static contacts are distributed on both sides of the plane where the inlet ends of the first static contacts are located. In addition, in order to make the first static contact better contact or separate with the moving contact and realize the switching operation of the contact mechanism of the power conversion switch, it can be considered that: the static contact points of the pair of first static contacts are symmetrical structures compared to the plane where the inlet ends of the first static contacts are located, such as Figure 3 As shown, when the pair of first static contacts are installed in the first groove structure and the second groove structure, the static contact points of the pair of first static contacts are vertically symmetrical structures compared to the plane where the incoming wire ends of the first static contacts are located.

[0025] In order to better improve its insulation strength, it can be considered that the first groove structure and the second groove structure are separated by an insulating partition structure, such as Figure 1 As shown, the first groove structure and the second groove structure are respectively located on both sides of the insulating partition of the incoming line end and are not connected; and, in order to better cooperate with the first static contact, the groove structure can be an "L"-shaped groove structure or a "T"-shaped groove structure, the first static contact is inserted into the "L"-shaped groove structure or the "T"-shaped groove structure, and its static contact extends out of the groove structure, forming an upper and lower symmetrical structure.

[0026] like Figure 2 As shown, the outgoing terminal busbar is integrally formed to form a pair of second stationary contacts 3, and the second stationary contacts adopt the same structure of the outgoing terminal 301. It can be considered that the outgoing terminal busbar is formed into an integral structure by different bending of the copper busbar.

[0027] In addition, two static contact points 302 of a pair of the second static contacts are distributed on both sides of the plane where the outlet terminal of the second static contact is located; the outlet terminal bus structure meets the design of using the same outlet terminal for the main and backup lines by bending the copper busbar differently, which effectively makes up for the disadvantages of the small product appearance and limited internal space, and at the same time, reduces the cost of product parts.

[0028] The above embodiments describe the present invention in detail, but the above contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of application of the present invention shall still fall within the scope of the patent coverage of the present invention.

Claims

1. The inlet and outlet terminal structure of the power conversion switch contact mechanism is characterized by: Including the insulation partition at the incoming line end and the busbar at the outgoing line end; Static contact mounting plates are arranged on both sides of the inlet end insulating partition, and groove structures are formed on the surface of the static contact mounting plates, which are respectively a first groove structure and a second groove structure, and a pair of first static contacts are respectively installed in the first groove structure and the second groove structure; The outgoing terminal busbar is integrally formed to form a pair of second stationary contacts, and the second stationary contacts adopt the same outgoing terminal structure.

2. The inlet and outlet terminal structure of the power conversion switch contact mechanism according to claim 1 is characterized in that: The outlet terminal busbar is formed into an integral structure by bending the copper busbar in different ways.

3. The inlet and outlet terminal structure of the power conversion switch contact mechanism according to claim 1 is characterized in that: The two static contact points of a pair of the second static contacts are distributed on both sides of the plane where the outlet end of the second static contact is located.

4. The inlet and outlet terminal structure of the power conversion switch contact mechanism according to claim 1 is characterized in that: The first groove structure and the second groove structure enable the incoming wire ends of the pair of first static contacts to be on the same plane after installation, and the static contact points of the pair of first static contacts to be distributed on both sides of the plane where the incoming wire ends of the first static contacts are located.

5. The inlet and outlet terminal structure of the power conversion switch contact mechanism according to claim 4 is characterized in that: The stationary contact points of a pair of the first stationary contacts are symmetrical structures relative to the plane where the incoming line end of the first stationary contact is located.

6. The inlet and outlet terminal structure of the power conversion switch contact mechanism according to claim 1 is characterized in that: An insulating partition structure is provided between the first groove structure and the second groove structure.

7. The inlet and outlet terminal structure of the power conversion switch contact mechanism according to claim 1 is characterized in that: The groove structure is an "L"-shaped groove structure or a "T"-shaped groove structure.

8. The inlet and outlet terminal structure of the power conversion switch contact mechanism according to claim 1 is characterized in that: The inlet end insulating partition is made of electrical insulating material.

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