A secondary terminal mounting structure of a circuit breaker

Abstract

The utility model discloses a secondary terminal mounting structure of circuit breaker, it includes upper terminal, lower terminal and mounting panel, the lower terminal is installed in the downside of mounting panel, the upper terminal is installed in the upside of mounting panel, the mounting panel is installed on the base of circuit breaker. After installing the independent integrated secondary terminal on the mounting panel and then installing the mounting panel on the base, the mounting difficulty of secondary terminal is simplified, and the space occupied by secondary terminal is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of circuit breaker technology, specifically relating to a secondary terminal mounting structure for a circuit breaker. Background Technology

[0002] Secondary connectors are important accessories for circuit breakers, primarily used to connect the internal circuitry of low-voltage circuit breakers to the user's external circuitry. Circuit breakers are equipped with various accessories, such as shunt trip units, undervoltage trip units, alarm contacts, closing electromagnets, electric operating mechanisms, auxiliary contacts, etc. There are two main methods for wiring the user's external circuitry and accessories: First, the wiring is directly led out from the accessory and connected to the user's end. This method is suitable when there are many types of accessories, but it can cause identification difficulties and wiring errors. Second, a separate terminal block is used for user wiring. While this method is convenient and quick, its complex internal fixing structure results in relatively high costs, and the need to fix it to the casing increases the product's size and requires more space. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing secondary connector installation structures, which are complex and occupy a large amount of space, by providing a secondary terminal installation structure for circuit breakers. The independent integral secondary terminal is divided into upper and lower terminals and then installed on a mounting plate. The mounting plate is then installed on a base, which not only simplifies the installation difficulty of the secondary terminals but also reduces the space occupied by the secondary terminals.

[0004] Technical solution

[0005] To achieve the above-mentioned technical objectives, this utility model provides a secondary terminal mounting structure for a circuit breaker, characterized in that: it includes an upper terminal, a lower terminal, and a mounting plate, the lower terminal is located on the lower side of the mounting plate, the upper terminal is located on the upper side of the mounting plate, the mounting plate is mounted on the base of the circuit breaker, the lower terminal is fixed on the mounting plate, and the upper terminal is fixed on the lower terminal.

[0006] In one embodiment, the lower terminal is snapped onto the underside of the mounting plate.

[0007] In one embodiment, the upper terminal is screwed to the lower terminal.

[0008] In one embodiment, the mounting plate is mounted on the base via a locking structure.

[0009] In one embodiment, the mounting plate is a type of structure, including a first side and a second side that are perpendicular to each other.

[0010] In one embodiment, the outer side of the second side is closely attached to the mounting surface of the base.

[0011] In one embodiment, the mounting plate has at least one opening corresponding to the lower terminal.

[0012] In one embodiment, the mounting plate has two such openings, and the projections of the two openings in the front - rear direction partially overlap.

[0013] In one embodiment, there is a card seat on each of the left and right sides of the opening and at the lower side of the mounting plate. The bottom of the card seat has a bayonet, and both sides of the lower terminal have a first boss. The distance between the outer sides of the two first bosses is greater than the distance between the inner sides of the two card seats.

[0014] In one embodiment, the card seat is in a mountain - shape.

[0015] Beneficial effects

[0016] A secondary terminal mounting structure of a circuit breaker provided by the present utility model includes an upper terminal, a lower terminal, and a mounting plate. The lower terminal is installed on the lower side of the mounting plate, the upper terminal is installed on the upper side of the mounting plate, and the mounting plate is installed on the base of the circuit breaker. By dividing the independent integral secondary terminal into upper and lower parts and then installing them on the mounting plate and then installing the mounting plate on the base, not only simplifies the installation difficulty of the secondary terminal, but also reduces the space occupied by the secondary terminal. Brief description of the drawings

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0018] Attached Figure 1 is a schematic diagram of the installation of a secondary terminal in the prior art;

[0019] Attached Figure 2 is a schematic diagram of the installation of a secondary terminal in an embodiment of the present utility model;

[0020] Attached Figure 3 is a three - dimensional schematic diagram of the upper terminal in an embodiment of the present utility model;

[0021] Attached Figure 4 is a three - dimensional schematic diagram of the lower terminal in an embodiment of the present utility model;

[0022] Attached Figure 5This is a three-dimensional schematic diagram of the mounting plate in an embodiment of this utility model;

[0023] Appendix Figure 6 This is a three-dimensional schematic diagram of the completed installation in an embodiment of this utility model;

[0024] Appendix Figure 7 This is a three-dimensional schematic diagram of the mounting plate in an embodiment of this utility model. Figure 2 .

[0025] The components include: secondary terminal mounting structure 1; upper terminal 12; mounting plate 13; lower terminal 11; base 2; locking structure a; first side 13a; second side 13b; opening 13c; card holder 13d; and bayonet 13e. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0031] Example

[0032] Existing secondary connector installation structures are complex and occupy a large space. To solve this problem, this embodiment provides a secondary terminal installation structure for a circuit breaker, which includes an upper terminal 12, a lower terminal 11, and a mounting plate 13. The lower terminal 11 is located on the lower side of the mounting plate 13, and the upper terminal 12 is located on the upper side of the mounting plate 13. The mounting plate 13 is mounted on the base 2 of the circuit breaker.

[0033] Specifically, the lower terminal 11 is snapped onto the lower side of the mounting plate 13. The upper terminal 12 is screwed onto the lower terminal 11. The mounting plate 13 is mounted on the base 2 via a locking structure a.

[0034] Mounting plate 13 has two openings 13c, each opening 13c corresponding to a lower terminal 11. The projected portions of the two openings 13c in the front-to-back direction overlap.

[0035] On the left and right sides of the opening 13c, and on the lower side of the mounting plate 13, there is a retainer 13d. The retainer is mountain-shaped, and the bottom of the retainer 13d has a snap-fit ​​13e. The lower terminal 11 has protrusions 11a on both sides. The distance between the outer sides of the two protrusions 11a is greater than the distance between the inner sides of the two retainers 13d. During installation, the two protrusions 11a are engaged between the two retainers 13d, causing the two retainers 13d to deform outwards. The lower terminal 11 is pushed upwards until it is installed in place. At this time, the two protrusions 11a are located in the snap-fit ​​13e of the two retainers 13d, and the two retainers 13d return to their original position. This achieves a fixed connection between the lower terminal 11 and the mounting plate 13. Preferably, after the lower terminal 11 is installed in place, the upper surface of the lower terminal 11 is flush with the upper surface of the mounting plate 13.

[0036] The upper terminal 12 has two bosses 12a on both sides, which correspond to the first boss 11a. Bolts are provided in the second boss 12a, and the upper terminal 12 is fixedly connected to the lower terminal 11 by the bolts.

[0037] In detail, the mounting plate 13 has an L-shaped structure, including a first side 13a and a second side 13b that are perpendicular to each other. The outer surface of the second side 13b is in close contact with the mounting surface 2a of the base 2. The locking structure a of the mounting plate 13 can be a screw, and the second side 13b is mounted on the base 2 through the locking structure a.

[0038] This utility model provides a secondary terminal mounting structure for a circuit breaker. The independent integral secondary terminal is divided into upper and lower terminals and then mounted on a mounting plate. The mounting plate is then mounted on a base, which not only simplifies the installation difficulty of the secondary terminal but also reduces the space occupied by the secondary terminal.

[0039] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0040] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A secondary terminal mounting structure (1) for a circuit breaker, characterized in that: It includes an upper terminal (12), a lower terminal (11) and a mounting plate (13). The lower terminal (11) is located on the lower side of the mounting plate (13), the upper terminal (12) is located on the upper side of the mounting plate (13), the mounting plate (13) is installed on the base (2) of the circuit breaker, the lower terminal (11) is fixed on the mounting plate (13), and the upper terminal (12) is fixed on the lower terminal (11).

2. The secondary terminal mounting structure (1) as described in claim 1, characterized in that: The lower terminal (11) is clamped on the lower side of the mounting plate (13).

3. The secondary terminal mounting structure (1) as described in claim 1, characterized in that: The upper terminal (12) is screwed to the lower terminal (11).

4. The secondary terminal mounting structure (1) as described in claim 1, characterized in that: The mounting plate (13) is installed on the base (2) through a locking structure (a).

5. The secondary terminal mounting structure (1) as described in claim 1, characterized in that: The mounting plate (13) is of an L-shaped structure, including a first side (13a) and a second side (13b) that are perpendicular to each other.

6. The secondary terminal mounting structure (1) as described in claim 5, characterized in that: The outer surface of the second side (13b) is closely attached to the mounting surface (2a) of the base (2).

7. The secondary terminal mounting structure (1) as described in claim 2, characterized in that: The mounting plate (13) has at least one opening (13c) corresponding to the lower terminal (11).

8. The secondary terminal mounting structure (1) as described in claim 7, characterized in that: The mounting plate (13) has two such openings (13c), and the projections of the two openings (13c) in the front-back direction partially overlap.

9. The secondary terminal mounting structure (1) as described in claim 7, characterized in that: On both the left and right sides of the opening (13c) and on the lower side of the mounting plate (13), there is a clamping seat (13d) respectively. The bottom of the clamping seat (13d) has a bayonet (13e), and both sides of the lower terminal (11) have a first boss (11a). The distance between the outer sides of the two first bosses (11a) is greater than the distance between the inner sides of the two clamping seats (13d).

10. The secondary terminal mounting structure (1) as described in claim 9, characterized in that: The clamping seat (13d) is in a mountain shape.

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