Low-current primary connector for drawer cabinet

Abstract

The utility model discloses a low-current primary connector for a drawer cabinet, which comprises a connector bar, the connector bar comprises a mounting plate and a fixing plate, one end of the mounting plate is fixedly connected with the fixing plate, two contact copper sheets are arranged on the surface of the mounting plate, and spring sheets are arranged on the surface of the mounting plate at positions opposite to the contact copper sheets. The spring piece covers the surface of the contact copper piece, and the bottom of the spring piece is in contact with the bottom of the contact copper piece. By combining with the structural design of the utility model, in a low-current use environment of the switch cabinet, the switch cabinet has better plugging capability in the process of plugging a connector, so that the service life of each part in the switch cabinet is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical components, in particular to a small-current primary connector for a drawer cabinet. Background Art

[0002] Low-voltage switchgear is suitable for power transmission, distribution, and conversion in industries such as power plants, petroleum, chemical, metallurgy, textiles, and high-rise buildings. The main circuit connectors in drawer-type low-voltage switchgear are generally divided into movable and static connectors. The movable connector is driven by the drawer, enabling the movable and static connectors to switch on and off. In the low-voltage switchgear industry, 125A is generally used as the limit. Small drawer units typically do not exceed 125A, while large unit drawers can handle up to 630A, with some even offering 800A with dual 400A units. These different loads require greater insertion force to insert the larger unit drawer (a 630A unit typically requires around 100kg of force), making direct manual insertion difficult. A rotary push mechanism is often used to assist in inserting and removing the drawer. Low-current drawers, on the other hand, can usually be inserted and removed manually due to their lower insertion and removal forces. High-current drawers require greater insertion and removal forces, and a dedicated force-saving mechanism ensures a smooth and reliable push-in process.

[0003] However, existing low-current primary connectors have relatively low insertion and removal forces, as required by technical standards. However, because they rely on manual insertion, insufficient force during insertion can prevent the connector from being inserted, while greater force can create significant impact, potentially damaging components. Therefore, low-current and high-current connectors differ in their operating environments. Summary of the Invention

[0004] The purpose of this utility model is to provide a low-current primary connector for a drawer cabinet. This solves the problem mentioned in the background art above that existing low-current primary connectors, while requiring relatively low insertion and removal forces as required by technical standards, rely on manual propulsion. This means that if the connector is pushed in too lightly during insertion, it will not fit. However, if too much force is applied, the drawer will experience significant impact, potentially damaging components. Therefore, there are certain differences in the operating environments of low-current and high-current connectors.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a small current primary connector for a drawer cabinet, comprising a terminal block, the terminal block comprising a mounting plate and a fixed plate, one end of the mounting plate being fixedly connected to the fixed plate, two contact copper sheets being arranged on the surface of the mounting plate, a spring sheet being provided on the surface of the mounting plate at a position opposite to the contact copper sheets, and the spring sheet covering the surface of the contact copper sheet, and the bottom of the spring sheet being in contact with the bottom of the contact copper sheet.

[0006] Preferably, the mounting plate includes a first connecting plate and a second connecting plate, one end of the first connecting plate is connected to the fixing plate, and the other end of the first connecting plate is fixedly connected to the second connecting plate.

[0007] Preferably, the first connecting plate and the second connecting plate are designed in a stepped structure, the connection between the first connecting plate and the second connecting plate adopts an arc structure design, and the middle of the surface of the first connecting plate and the second connecting plate are fixedly connected with a positioning column.

[0008] Preferably, a positioning hole adapted to the positioning column is opened in the middle of the surface of the contact copper sheet and the spring sheet, and the inner wall of the positioning hole is in contact with the outer wall of the positioning column.

[0009] Preferably, a connecting piece bent outward is fixedly connected to the bottom of the contact copper piece, and the inner wall of the connecting piece is in contact with the bottom surface of the spring piece.

[0010] Preferably, the contact copper sheet and the spring sheet are both designed in a U-shaped structure.

[0011] Beneficial effects

[0012] Compared with the existing technology, the beneficial effects of the present invention are:

[0013] Combined with the structural design of the utility model, the utility model has good plugging and unplugging capabilities during the process of inserting the connector in a low current use environment, thereby improving the service life of various components in the switch cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the exploded structure of the present invention.

[0016] 1. Terminal block; 2. Contact copper sheet; 3. Spring sheet; 11. Fixing plate; 12. Mounting plate; 13. Positioning column;

[0017] 21. Connecting piece; 22. Positioning hole; 121. First connecting plate; 122. Second connecting plate. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be noted that the terms "upper," "lower," "left," "right," "front," "back," "inner," "outer," "vertical," and "horizontal" and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and are therefore not to be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

[0020] like Figure 1-2 It is a structural schematic diagram of a small-current primary connector for a drawer cabinet in a preferred embodiment of the present invention. In this embodiment, a small-current primary connector for a drawer cabinet includes a terminal block 1. The terminal block 1 includes a mounting plate 12 and a fixing plate 11. One end of the mounting plate 12 is fixedly connected to the fixing plate 11. Two contact copper sheets 2 are arranged on the surface of the mounting plate 12. The mounting plate 12 and the contact copper sheet 2 are fixed by riveting. A spring sheet 3 is provided on the surface of the mounting plate 12 at a position relative to the contact copper sheet 2, and the spring sheet 3 covers the surface of the contact copper sheet 2, and the bottom of the spring sheet 3 is in contact with the bottom of the contact copper sheet 2. Combined with the structural design of the present invention, it has good plugging and unplugging capabilities during the insertion of the connector in a small current use environment, thereby improving the service life of various components in the switch cabinet.

[0021] In this embodiment, the mounting plate 12 includes a first connecting plate 121 and a second connecting plate 122, one end of the first connecting plate 121 is connected to the fixed plate 11, and the other end of the first connecting plate 121 is fixedly connected to the second connecting plate 122. At the same time, the first connecting plate 121 and the second connecting plate 122 are designed with a stepped structure, and the connection between the first connecting plate 121 and the second connecting plate 122 adopts an arc structure design, which can reduce the resistance of the contact copper sheet 2 when current is passed through. The middle of the surface of the first connecting plate 121 and the second connecting plate 122 are fixedly connected with a positioning column 13.

[0022] In this embodiment, a positioning hole 22 adapted to the positioning column 13 is opened in the middle of the surface of the contact copper sheet 2 and the spring sheet 3, and the inner wall of the positioning hole 22 is in contact with the outer wall of the positioning column 13. This structural design facilitates better installation of the contact copper sheet 2 and the spring sheet 3 and plays a guiding role.

[0023] In this embodiment, a connecting piece 21 bent outward is fixedly connected to the bottom of the contact copper sheet 2, and the inner wall of the connecting piece 21 contacts the bottom surface of the spring sheet 3. The contact copper sheet 2 and the spring sheet 3 both adopt a U-shaped structural design. The above structural design allows them to fit better.

[0024] The above content is a further detailed description of the present invention in combination with specific implementation methods. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, they can make several simple deductions or substitutions without departing from the concept of the present invention, which should be regarded as falling within the scope of protection determined by the claims submitted for the present invention.

Claims

1. A low-current primary connector for a drawer cabinet, comprising a terminal block (1), characterized in that: The terminal block (1) comprises a mounting plate (12) and a fixing plate (11); one end of the mounting plate (12) is fixedly connected to the fixing plate (11); two contact copper sheets (2) are arranged on the surface of the mounting plate (12); a spring sheet (3) is provided on the surface of the mounting plate (12) at a position relative to the contact copper sheets (2); the spring sheet (3) covers the surface of the contact copper sheets (2); and the bottom of the spring sheet (3) is in contact with the bottom of the contact copper sheets (2).

2. A low-current primary connector for a drawer cabinet according to claim 1, characterized in that: The mounting plate (12) comprises a first connecting plate (121) and a second connecting plate (122), one end of the first connecting plate (121) is connected to the fixing plate (11), and the other end of the first connecting plate (121) is fixedly connected to the second connecting plate (122).

3. The low-current primary connector for a drawer cabinet according to claim 2, characterized in that: The first connecting plate (121) and the second connecting plate (122) are designed in a stepped structure, the connection between the first connecting plate (121) and the second connecting plate (122) is designed in an arc structure, and the middle of the surface of the first connecting plate (121) and the second connecting plate (122) are fixedly connected with a positioning column (13).

4. The low-current primary connector for a drawer cabinet according to claim 1, characterized in that: A positioning hole (22) adapted to the positioning column (13) is provided in the middle of the surface of the contact copper sheet (2) and the spring sheet (3), and the inner wall of the positioning hole (22) contacts the outer wall of the positioning column (13).

5. The low-current primary connector for a drawer cabinet according to claim 4, characterized in that: A connecting piece (21) bent outward is fixedly connected to the bottom of the contact copper piece (2), and the inner wall of the connecting piece (21) is in contact with the bottom surface of the spring piece (3).

6. The low-current primary connector for a drawer cabinet according to claim 4, characterized in that: The contact copper sheet (2) and the spring sheet (3) both adopt a U-shaped structural design.

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