Connecting plate structure for molded case circuit breaker

Abstract

The utility model discloses a connecting plate structure used for a molded case circuit breaker, comprising a housing, the housing is provided with an installation cavity, and the installation cavity is internally provided with a conducting strip and a connecting plate; the connecting plate is fixed on the conducting strip through a first fastener; the connecting plate comprises a first part, a second part and a third part; a connecting hole connected with a first fastener is formed in the first part, the first part is connected with the third part through the second part, and a plurality of mounting holes with consistent structures are uniformly distributed in the third part; and a second fastener is connected with the mounting hole so as to fix the power supply outgoing line on the connecting plate. Through the arrangement of the connecting plate, the power supply outgoing lines are conveniently connected with the shell, and particularly, the connecting plate is provided with a plurality of mounting holes, so that the connecting plate can be simultaneously connected with a plurality of power supply outgoing lines; and on the other hand, the arrangement of the plurality of mounting holes facilitates the flowing of air flow, thereby facilitating the discharge of heat of the conducting strip.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, and particularly relates to a connecting plate structure for a molded case circuit breaker. Background Art

[0002] For existing circuit breakers, such as the prior art with the publication number of CN104637741B, the power supply lead-out wire is fixed on the circuit breaker through a wire clip at the bottom; however, each time a new power supply lead-out wire is added, the wire clip needs to be loosened, and then the new power supply wire is inserted and the wire clip is tightened again; thus, when the diameters of the power supply wires are not uniform, it is very difficult for the wire clip to tightly clamp each power supply wire; in addition, some of the conductive metals inside the power supply wire are columnar and some are filamentous, so it is also very difficult for the wire clip to tightly clamp both of them. In particular, the installation method of the wire clip in the prior art is to insert the power supply wire into the wire clip from below. When the circuit breaker is installed, the operable space of the wire clip is limited, resulting in inconvenient connection of the power supply wire. Content of the Utility Model

[0003] The purpose of the utility model is to provide a connecting plate structure for a molded case circuit breaker to solve the problems put forward in the above background art.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A connecting plate structure for a molded case circuit breaker, including a housing, an installation cavity is provided on the housing, a conductive sheet and a connecting plate are provided in the installation cavity, and the connecting plate is fixed on the conductive sheet through a first fastener provided; the connecting plate includes a first part, a second part and a third part; wherein, a connection hole for connecting with the first fastener is provided on the first part, and the first part is connected to the third part through the second part; a plurality of uniformly distributed mounting holes with the same structure are provided on the third part, and are connected with the mounting holes through a second fastener provided to fix the power supply lead-out wire on the connecting plate.

[0005] As a preferred technical solution of the utility model: The cross-section of the connecting plate is Z-shaped, and one end of the third part extends to the outside of the installation cavity.

[0006] As a preferred technical solution of the utility model: The connection hole is a clearance hole.

[0007] As a preferred technical solution of the utility model: The cross-section of the connecting plate is U-shaped, and the third part is located in the installation cavity.

[0008] As a preferred technical solution of the utility model: The connection hole is an internal thread hole.

[0009] As a preferred technical solution of the present utility model: chutes are provided on both sides of the installation cavity and are connected to the chutes through the provided partition plates to separate any two adjacent connecting plates.

[0010] As a preferred technical solution of the present utility model: protrusions are provided on one side of the first part facing the conductive sheet.

[0011] Adopting the above technical solution, the beneficial effects of the present utility model are as follows: 1. The second fastener is connected to the installation hole to fix the power supply lead-out wire on the connecting plate, so that the connection between the power supply lead-out wire and the housing is convenient. In particular, each power supply wire can be independently connected to the connecting plate, thus solving the problem that it is difficult to reliably fix the power supply lead-out wire due to different diameters or non-uniform shapes of the conductive metals of the power supply lead-out wires.

[0012] 2. Since there are multiple installation holes on the connecting plate, on the one hand, the connecting plate can be used to connect multiple power supply lead-out wires at the same time; on the other hand, the arrangement of multiple installation holes also facilitates the flow of air, which is conducive to discharging the heat of the conductive sheet. In particular, the power supply lead-out wire can be attached to the connecting plate and then fixed to the connecting plate through the second fastener, so that the connection of the power supply lead-out wire can be simplified, and the operation space during the installation of the power supply lead-out wire is relatively large, thus facilitating the connection of the power supply lead-out wire. Description of the Drawings

[0013] Figure 1 It is a schematic diagram of the main structure of the first embodiment of the present utility model;

[0014] Figure 2 It is an exploded view of the structure of the first embodiment of the present utility model;

[0015] Figure 3 It is a schematic diagram of the structure of the connecting plate of the first embodiment of the present utility model;

[0016] Figure 4 It is a schematic diagram of the main structure of the second embodiment of the present utility model;

[0017] Figure 5 It is an exploded view of the structure of the second embodiment of the present utility model;

[0018] Figure 6 It is a connection diagram of the connecting plate of the second embodiment of the present utility model.

[0019] In the figure: 1, housing; 2, partition plate; 3, connecting plate; 30, first part; 31, second part; 32, third part; 33, installation hole; 34, connection hole; 35, protrusion; 4, conductive sheet; 5, chute; 6, installation cavity; 7, first fastener; 8, second fastener. Detailed Embodiment

[0020] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present utility model, and should not be construed as limiting the present utility model. In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "upper surface", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

[0021] Please refer to Figure 1-6 , an embodiment provided by the present utility model: a connecting plate structure for a plastic case circuit breaker, including a housing 1, an installation cavity 6 is provided on the housing 1, and a conductive sheet 4 and a connecting plate 3 are provided in the installation cavity 6, and the connecting plate 3 is fixed on the conductive sheet 4 by a first fastener 7; the connecting plate 3 includes a first part 30, a second part 31 and a third part 32; wherein, a connection hole 34 for connecting with the first fastener 7 is provided on the first part 30, and the first part 30 is connected to the third part 32 through the second part 31; a plurality of uniformly distributed mounting holes 33 with the same structure are provided on the third part 32, and are connected to the mounting holes 33 through a second fastener 8 to fix the power supply lead-out wire on the connecting plate 3.

[0022] In summary, by connecting the second fastener 8 with the mounting holes 33 to fix the power supply lead-out wire on the connecting plate 3, it is convenient to connect the power supply lead-out wire to the housing 1. In particular, each power supply wire can be independently connected to the connecting plate 3, thereby solving the problem that it is difficult to reliably fix the power supply lead-out wire due to different diameters or non-uniform shapes of the conductive metals.

[0023] Furthermore, since there are multiple mounting holes 33 on the connecting plate 3, on the one hand, the connecting plate 3 can be used to connect multiple power supply lead-out wires at the same time; on the other hand, the arrangement of the multiple mounting holes 33 is also convenient for air flow, which is conducive to discharging the heat of the conductive sheet; in particular, the power supply lead-out wire can be attached to the connecting plate 3 and then fixed on the connecting plate 3 by the second fastener 8, so that the connection of the power supply lead-out wire can be simplified, and thus the operation space during the installation of the power supply lead-out wire is larger, which is convenient for the connection of the power supply lead-out wire.

[0024] Embodiment 1: Specifically, as shown in Figure 1 , Figure 2 , Figure 3As shown, the cross-section of the connecting plate 3 is Z-shaped, and one end of the third part 32 extends outward from the installation cavity 6. Therefore, through the outward extension of the third part 32, it is further convenient for the user to fix the power lead on the connecting plate 3.

[0025] Furthermore, since the connecting hole 34 is a clearance hole, it is convenient for the first fastener 7 to be connected to the internal thread provided on the housing 1 after passing through the clearance hole or to be connected to a nut after passing through the housing 1.

[0026] Embodiment 2: Specifically, as Figure 4 , Figure 5 , Figure 6 shown, the cross-section of the connecting plate 3 is U-shaped, and the third part 32 is located inside the installation cavity 6. When the cross-section of the connecting plate 3 is U-shaped, the exposed area of the connecting plate 3 can be reduced. Without affecting the connection of the power lead, the entire connecting plate 3 can be located inside the installation cavity 6, reducing safety accidents caused by excessive exposed area.

[0027] Specifically, since the connecting hole 34 is an internal thread hole, at this time, the first fastener 7 can be inserted into the housing 1 from the back of the housing 1 and then threadedly engaged with the connecting hole 34. Therefore, the connecting plate 3 can also be reliably fixed inside the installation cavity 6. While facilitating the installation of the first fastener 7, it can also reduce the U-shaped space occupied by the first fastener 7 inside the connecting plate 3.

[0028] On the basis of the above solution, since chutes 5 are provided on both sides of the installation cavity 6 and are connected to the chutes 5 through the provided partition 2 to separate any two adjacent connecting plates 3, therefore, regardless of whether the connecting plate 3 protrudes outside the installation cavity 6, the partition 2 can be used to separate two adjacent connecting plates 3 to ensure the safe use of the device.

[0029] Furthermore, since protrusions 35 are provided on the surface of the first part 30 facing the conductive sheet 4, when the protrusions 35 are stuck on both sides of the conductive sheet 4, the phenomenon that the connecting plate 3 rotates axially along the central axis of the first fastener 7 can be avoided. Furthermore, it ensures that the connecting plate 3 has sufficient anti-torsion ability after being fixed.

[0030] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, without departing from the principles and spirit of the present invention, various changes, modifications, substitutions, and variations to these embodiments still fall within the protection scope of the present invention.

Claims

1. A connection plate structure for a molded case circuit breaker, characterized in that: The invention comprises a housing (1), wherein a mounting cavity (6) is provided on the housing (1), a conductive sheet (4) and a connecting plate (3) are provided in the mounting cavity (6), and the connecting plate (3) is fixed to the conductive sheet (4) by a first fastener (7); The connecting plate (3) comprises a first part (30), a second part (31) and a third part (32); wherein the first part (30) is provided with a connecting hole (34) connected to the first fastener (7), and the first part (30) is connected to the third part (32) via the second part (31); The third part (32) is evenly distributed with a plurality of mounting holes (33) of the same structure, and is connected to the mounting holes (33) via a second fastener (8) to fix the power lead wire on the connecting plate (3).

2. A connection plate structure for a molded case circuit breaker according to claim 1, characterized in that: The cross section of the connecting plate (3) is Z-shaped, and one end of the third portion (32) extends toward the outside of the installation cavity (6).

3. A connection plate structure for a molded case circuit breaker according to claim 2, characterized in that: The connecting hole (34) is a light hole.

4. The connection plate structure for a molded case circuit breaker according to claim 1, characterized in that: The cross section of the connecting plate (3) is U-shaped, and the third portion (32) is located in the installation cavity (6).

5. A connection plate structure for a molded case circuit breaker according to claim 4, characterized in that: The connecting hole (34) is an internal threaded hole.

6. A connection plate structure for a molded case circuit breaker according to any one of claims 1 to 5, characterized in that: Slide grooves (5) are provided on both sides of the installation cavity (6), and are connected to the slide grooves (5) via a partition plate (2) so as to separate any two adjacent connection plates (3).

7. A connection plate structure for a molded case circuit breaker according to claim 5, characterized in that: A protrusion (35) is provided on one side of the first part (30) facing the conductive sheet (4).

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