Clamping plate and sliding plate connecting structure of drawer type frame circuit breaker

Abstract

A clamping plate and sliding plate connecting structure of a drawer type frame circuit breaker comprises a circuit breaker body and a drawer base, the circuit breaker body can be rocked in or out of the drawer base, and a first hanging lug and a second hanging lug are arranged on the circuit breaker body. The first hanging lug and the second hanging lug can enter a limiting groove formed by combining the sliding plate and the clamping plate in the process that the circuit breaker body is rocked into the drawer base so that the circuit breaker body can be limited, and limiting arms extending out of the two sides of the clamping plate and limiting openings in the sliding plate form limiting grooves. Limiting arms extending out of the two sides of the clamping plate extend out of the limiting opening to the outer side area of the limiting opening in the sliding plate. According to the circuit breaker clamping plate and sliding plate connecting structure, the number and types of parts are reduced, the assembling efficiency is improved, the machining precision is reduced, and the size adjustment of mating parts is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit breakers, and specifically relates to a connecting structure between a card plate and a slide plate of a drawer-type frame circuit breaker. Background Art

[0002] A low-voltage circuit breaker, also known as an automatic switch or "air switch," is an electrical device that functions as a manual switch and automatically provides protection against loss of voltage, undervoltage, overload, and short-circuit. It can be used to distribute electrical energy, infrequently start asynchronous motors, and protect power lines and motors. It automatically disconnects the circuit in the event of a severe overload, short circuit, or undervoltage fault. Its functionality is equivalent to a combination of a fuse-type switch and an over- and under-temperature relay. Furthermore, interrupting the fault current generally requires no component changes, making it widely used.

[0003] Circuit breakers have diverse structures depending on their performance requirements. Drawout frame circuit breakers are a common design used in the low-voltage electrical industry. They primarily consist of a circuit breaker body and a drawer. When the circuit breaker requires maintenance or other operations, the body must be removed from the drawer, separating it from the main circuit. To ensure operator safety, a safety door is installed between the body and the main circuit to prevent electric shock. This door must also be able to be opened when the circuit breaker body and the main circuit need to be connected. In existing safety door systems, the circuit breaker body is installed on a drawer plate, which consists of a clip and a slide. The circuit breaker body is mounted on the clips on either side of the drawer using a mounting bracket. The clip and slide form a mating structure. Two identical clips are often riveted to one side of the slide, resulting in numerous riveted points throughout the assembly. This duplicated mating points makes it difficult to control, consuming assembly time and requiring high machining precision. Furthermore, the size of the mounting brackets used for connection is difficult to adjust. Utility Model Content

[0004] The purpose of the present invention is to address the defects of the above-mentioned existing drawer-type frame circuit breaker card plate and slide connection method, provide a drawer-type frame circuit breaker card plate and slide connection structure, improve the drawer-type frame circuit breaker card plate and slide connection structure, simplify the connection structure, and reduce the difficulty of assembly.

[0005] Technical Solution

[0006] To achieve the above technical objectives, the present invention provides a drawer-type frame circuit breaker card and slide connection structure, which includes a circuit breaker body and a drawer seat. The circuit breaker body can be rocked in or out of the drawer seat. The slide is slidably connected to the drawer seat. The card is fixedly connected to the slide. The circuit breaker body is provided with a first hanging ear and a second hanging ear. The first hanging ear and the second hanging ear can enter the limit groove formed by the slide and the card when the circuit breaker body is rocked into the drawer seat, thereby limiting the circuit breaker body. The utility model is characterized in that:

[0007] The limiting arms extending from both sides of the card plate and the limiting opening on the slide plate form limiting grooves, and the limiting arms extending from both sides of the card plate extend from the limiting opening to the outer area of the limiting opening on the slide plate.

[0008] In one embodiment, the limiting arms extending from both sides of the card plate extend from the limiting opening to the outer area of the limiting opening on the slide and are fixed to the outer area of the limiting opening, and the connection parts between the limiting arms on both sides of the card plate are matched and fixed with the slide.

[0009] In one embodiment, the clamping plate is T-shaped.

[0010] In one embodiment, the projection range of the connection portion between the limiting arms on both sides of the clamping plate on the plane where the slide is located is within the range where the slide is located.

[0011] In one embodiment, the clamping plate is fixedly mounted on the inner side or the outer side of the slide plate.

[0012] In one embodiment, the side wall of the limiting opening exposes the range area of the connection part.

[0013] In one embodiment, the card plate is integral.

[0014] Beneficial effects

[0015] The utility model provides a drawer-type frame circuit breaker card and slide connection structure, which includes a circuit breaker body and a drawer base. The circuit breaker body can be rocked in and out of the drawer base. The circuit breaker body is provided with a first hanging ear and a second hanging ear. When the circuit breaker body is rocked into the drawer base, the first hanging ear and the second hanging ear can enter the limit groove formed by the slide and the card to limit the circuit breaker body. Limiting arms extending from both sides of the card form a limit groove with a limit opening on the slide. The limiting arms extending from both sides of the card extend from the limit opening to the area outside the limit opening on the slide. This circuit breaker card and slide connection structure reduces the number and variety of parts, improves assembly efficiency, reduces processing accuracy, and facilitates the adjustment of the size of the mating parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0017] Attachment Figure 1 This is a schematic diagram of the installation of the circuit breaker card plate and the slide plate in the embodiment of the utility model;

[0018] Attachment Figure 2 This is a schematic diagram of the connection between the card plate and the slide plate in the embodiment of the present utility model;

[0019] Attachment Figure 3 This is a schematic diagram of the card structure in an embodiment of the present utility model;

[0020] Attachment Figure 4 This is a schematic diagram of the slide structure in the embodiment of the utility model;

[0021] Attachment Figure 5 It is a schematic diagram of the hanging ear structure in an embodiment of the present utility model.

[0022] Attachment Figure 6 It is a schematic diagram of the coordinated installation of the hanging ear and the slide plate in an embodiment of the present utility model. DETAILED DESCRIPTION

[0023] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0024] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0025] 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 the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0026] In this application, unless otherwise expressly specified or limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or that the first feature and the second feature are indirectly in contact through an intermediate medium. Furthermore, a first feature being “above,” “above,” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below,” “below,” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0027] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more of the relevant listed items.

[0028] Example

[0029] In existing safety door systems, the circuit breaker body is installed in a drawer housing. The circuit breaker body is then mounted on the drawer housing's two side plates using hooks. The hooks and slides form a mating structure. Two identical hooks are often riveted to one side of the slide, resulting in numerous riveted points throughout the structure, redundant strength, and time-consuming assembly. Furthermore, the hooks used for mounting the components are difficult to adjust in size, require high precision, and are difficult to manufacture.

[0030] In order to solve this problem, the attached Figure 1 As shown, this embodiment provides a drawer-type frame circuit breaker card and slide connection structure, which includes a circuit breaker body 1 and a drawer seat, the circuit breaker body 1 can be shaken in or out on the drawer seat, the slide 102 is slidably connected to the drawer seat, and the card 103 is fixedly connected to the slide 102. Figure 1 and 2As shown in Figures 5 and 6, the circuit breaker body 1 is provided with a hanging ear 101a and a hanging ear 101b. When the circuit breaker body 1 is rocked into the drawer seat, the hanging ear 101a and the hanging ear 101b can enter the limiting groove a formed by the slide 102 and the card plate 103 to limit the circuit breaker body 1.

[0031] The slide plate 102 is fixed to the card plate 103. The card plate 103 is preferably an integrated structure. Figure 4 The limiting opening 102a on the slide 102 shown forms a limiting groove a, and the limiting arms 103a extending from both sides of the integral clamping plate 103 extend from the limiting opening 102a to the outer area of the limiting opening 102a on the slide 102. Figure 3 The limiting arms 103a extending from both sides of the card plate 103 extend from the limiting opening 102a to the outer area of the limiting opening 102a on the slide plate 102 and are fixed to the outer area of the limiting opening 102a. The connection part 103b between the limiting arms 103a on both sides of the card plate 103 is matched and fixed to the slide plate 102. Figure 3 As shown, the clamping plate 103 is T-shaped. The projection range of the connection part 103b between the limiting arms 103a on both sides of the clamping plate 103 on the plane where the slide plate 102 is located is within the range of the slide plate 102, so that the side wall 102a01 of the limiting opening 102a is exposed to the range area of the connection part 103b.

[0032] Two slides 102 are located on either side of the drawer seat, and the clip 103 is fixedly mounted on the inner or outer side of the slide 102. In this embodiment, the clip 103 is fixedly mounted on the inner side of the slide 102. The integrated circuit breaker clip and slide connection structure reduces the number and variety of parts, improves assembly efficiency, reduces machining accuracy, and facilitates dimensional adjustment of mating parts.

[0033] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned 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.

[0034] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A drawer-type frame circuit breaker card and slide connection structure, comprising a circuit breaker body (1) and a drawer seat, wherein the circuit breaker body (1) can be rocked in or out on the drawer seat, the slide (102) is slidably connected to the drawer seat, the card (103) is fixedly connected to the slide (102), the circuit breaker body (1) is provided with a first hanging ear (101a) and a second hanging ear (101b), and the first hanging ear (101a) and the second hanging ear (101b) can enter a limiting groove (a) formed by the combination of the slide (102) and the card (103) when the circuit breaker body (1) is rocked into the drawer seat, so that the circuit breaker body (1) is limited, characterized in that: The limiting arms (103a) extending from both sides of the card plate (103) and the limiting opening (102a) on the slide plate (102) form a limiting groove (a); the limiting arms (103a) extending from both sides of the card plate (103) extend from the limiting opening (102a) to the outer area of the limiting opening (102a) on the slide plate (102).

2. The drawer-type frame circuit breaker card and slide connection structure according to claim 1, characterized in that: The limiting arms (103a) extending from both sides of the clamping plate (103) extend from the limiting opening (102a) to the outer area of the limiting opening (102a) on the slide plate (102) and are fixed to the outer area of the limiting opening (102a); the connecting portion (103b) between the limiting arms (103a) on both sides of the clamping plate (103) is matched and fixed to the slide plate (102).

3. The drawer-type frame circuit breaker card and slide connection structure according to claim 1, characterized in that: The clamping plate (103) is T-shaped.

4. The drawer-type frame circuit breaker card and slide connection structure according to claim 1, characterized in that: The projection range of the connection part (103b) between the limiting arms (103a) on both sides of the clamping plate (103) on the plane where the slide plate (102) is located is within the range where the slide plate (102) is located.

5. The drawer-type frame circuit breaker card and slide connection structure according to claim 1, characterized in that: The clamping plate (103) is fixedly mounted on the inner side or the outer side of the slide plate (102).

6. The drawer-type frame circuit breaker card and slide connection structure according to claim 4, characterized in that: The side wall (102a01) of the limiting opening (102a) exposes the range area of the connecting portion (103b).

7. The drawer-type frame circuit breaker card and slide connection structure according to claim 1, characterized in that: The clamping plate (103) is in an integrated form.

Images