Fixed circuit breaker top cover mounting structure

Abstract

A top cover mounting structure of a fixed circuit breaker comprises an integral top cover, a mounting hole is formed in the rear side end face of the integral top cover, a boss is arranged at the position, corresponding to the mounting hole, of a bottom plate, and the integral top cover is embedded in the boss through the mounting hole to achieve guide mounting of the integral top cover and the bottom plate. A secondary terminal is fixedly arranged on the side face of the front end of the integral top cover 1, and the side face of the front end of the integral top cover is locked on a circuit breaker base. The assembly process is simplified, the pre-formed opening is directly fastened with the bottom plate in a buckling or embedded mode, the assembly steps are greatly simplified, and the installation time is shortened.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit breakers, and specifically relates to a fixed circuit breaker top cover installation structure. Background Art

[0002] During the opening process of the moving and static contacts of a circuit breaker, an arc will be generated. After the arc enters the arc extinguishing chamber, it will be quickly cut off and extinguished, but the free conductive particles generated by it will still be ejected from the arc extinguishing chamber together with the high-pressure gas. Therefore, generally, a circuit breaker will install an arc baffle outside the arc extinguishing chamber to block the ejected arc particles, play a role in deionization, and achieve the purpose of zero arc flash.

[0003] The main function of the circuit breaker top cover is to provide safety protection and prevent accidental contact with live parts. For example, it helps to prevent electric shock accidents, protect the safety of operators and maintenance personnel, and ensure that the circuit breaker can safely and reliably perform its protection function in various environments. In the prior art, the top cover installation structure has the following deficiencies: 1. It is not easy to take out and disassemble the top cover for product maintenance; 2. There is a phenomenon of hitting the top cover during the breaking process, which poses a quality risk; 3. The installation process is time-consuming and the product needs to be rotated back and forth; 4. The number of parts is relatively large and the cost is relatively high. Summary of the Utility Model

[0004] The purpose of the utility model is to address the above-mentioned defect that the installation strength of the existing circuit breaker top cover is insufficient and it is prone to deformation, and provide a fixed circuit breaker top cover installation structure, which simplifies the assembly process. Through the preset openings, it is directly buckled or embedded and fastened with the bottom plate, greatly simplifying the assembly steps and shortening the installation time.

[0005] Technical Solution

[0006] To achieve the above technical purpose, a fixed circuit breaker top cover installation structure provided by the utility model is characterized in that: it includes an integral top cover, and installation holes are provided on the rear end face of the integral top cover. A boss is arranged at a position corresponding to the installation holes on the bottom plate. The integral top cover is installed in the boss through the installation holes to realize the guiding installation of the integral top cover and the bottom plate. With this structure, the overlapping surface is larger, the overall top cover is less impacted, the structural strength is higher, the appearance is more concise and integrated, the product design sense is improved, the installation is more convenient, the assembly cost is lower, and the assembly efficiency is higher.

[0007] In one of the embodiments, the boss is an L-shaped structure, and the shape of the installation hole on the integral top cover matches the shape of the corresponding side surface of the boss. The installation hole on the integral top cover is inserted into the corresponding side surface of the boss to realize the guiding installation of the integral top cover and the bottom plate.

[0008] In one embodiment, the front side of the integral top cover is fixed to the circuit breaker base.

[0009] In one embodiment, a mounting plate is provided on the front side of the integral top cover, and mounting screws pass through the screw through holes on the mounting plate to lock the integral top cover to the circuit breaker base.

[0010] In one embodiment, it further includes secondary terminals, and the secondary terminals are fixedly installed on the front side of the integral top cover.

[0011] In one embodiment, the number of the mounting holes is three, and they are evenly arranged on the rear end face of the integral top cover.

[0012] In one embodiment, the secondary terminals are located at the center of the front side of the integral top cover.

[0013] In one embodiment, the locking position on the front side of the integral top cover 1 is located at the center of the front side of the integral top cover.

[0014] Beneficial Effects

[0015] A fixed circuit breaker top cover mounting structure provided by the present utility model includes an integral top cover. Mounting holes are provided on the rear end face of the integral top cover, and bosses are arranged at positions corresponding to the mounting holes on the bottom plate. The integral top cover is installed in the bosses through the mounting holes to realize the guiding installation of the integral top cover and the bottom plate. The secondary terminals are fixedly installed on the front side of the integral top cover, and the front side of the integral top cover is locked to the circuit breaker base. The assembly process is simplified. It is directly buckled or embedded and fastened with the bottom plate through the preset openings, greatly simplifying the assembly steps and shortening the installation time. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, 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 invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0017] Att Figure 1 is a schematic diagram of the circuit breaker in the embodiment of the present utility model;

[0018] Att Figure 2 is a schematic diagram of the top cover structure in the embodiment of the present utility model;

[0019] Att Figure 3 is a schematic diagram of the bottom plate structure in the embodiment of the present utility model; Detailed Embodiments

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, rather than all of them. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0021] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or there may also 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 at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right", and similar expressions used in the specification of this application are only for the purpose of illustration and do not represent the only implementation.

[0022] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of this application, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0023] In this application, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first feature is in direct contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below", and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature has a lower horizontal height than the second feature.

[0024] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific implementations 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 related listed items.

[0025] Embodiment

[0026] As shown in the attached Figure 1As shown in the figure, a fixed circuit breaker top cover mounting structure includes an integral top cover 1, as shown in the appendix Figure 2 As shown, mounting holes 101 are provided on the rear end face of the integral top cover 1, as shown in the appendix Figure 3 As shown, a boss 201 is arranged at a position corresponding to the mounting hole 101 on the bottom plate 2. The integral top cover 1 is installed in the boss 201 through the mounting hole 101 to realize the guiding installation of the integral top cover 1 and the bottom plate 2. Specifically, the boss 201 is an L-shaped structure, and the shape of the mounting hole 101 on the integral top cover 1 matches the shape of the corresponding side surface of the boss 201. The mounting hole 101 on the integral top cover 1 is inserted into the corresponding side surface of the boss 201 to realize the guiding installation of the integral top cover 1 and the bottom plate 2. Further, as shown in the appendix Figure 1 As shown, the secondary terminal 3 is fixedly installed on the front side surface of the integral top cover 1 through a connection hole 103. There are 4 rectangular connection holes 103 on the integral top cover 1, and there are 4 buckles corresponding to the connection holes 103 on the secondary terminal 3. The 4 buckles cooperate with the 4 connection holes 103 to realize the left-right and downward limit, as shown in the appendix Figure 2 As shown, the secondary terminal 3 can also be further fixed by screws through two fastening holes 104 on the integral top cover 1. In this embodiment, the secondary terminal 3 is located at the center of the front side surface of the integral top cover 1. The front side surface of the integral top cover 1 is fixed on the circuit breaker base 4. Specifically, an installation plate 102 is provided on the front side surface of the integral top cover 1, and the installation screw 5 passes through the screw through hole 102a on the installation plate 102 to lock the integral top cover 1 on the circuit breaker base 4. With this structure, the overlapping surface is larger, the overall top cover is less affected by impact, the structural strength is higher, the appearance is more concise and integrated, the product design sense is improved, the installation is more convenient, the assembly cost is lower, and the assembly efficiency is higher.

[0027] Further, the number of the mounting holes 101 is 3, and they are evenly arranged on the rear end face of the integral top cover 1. The locking position on the front side surface of the integral top cover 1 is located at the center of the front side surface of the integral top cover 1. With this structure, there is a more uniform pressure distribution, making the connection between the top cover and the bottom plate more stable.

[0028] A fixed circuit breaker top cover mounting structure provided by the present utility model simplifies the assembly process. It directly buckles or is embedded and fastened with the bottom plate through the preset openings, greatly simplifies the assembly steps, and shortens the installation time.

[0029] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, 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, it should be considered as the scope described in this specification.

[0030] The above-described embodiments merely represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A fixed circuit breaker top cover installation structure, characterized in that: It includes an integral top cover (1). An installation hole (101) is provided on the rear end face of the integral top cover (1). A boss (201) is arranged at a position corresponding to the installation hole (101) on the bottom plate (2). The integral top cover (1) is installed in the boss (201) through the installation hole (101) to achieve the guiding installation of the integral top cover (1) and the bottom plate (2).

2. The installation structure of the fixed circuit breaker top cover according to claim 1, characterized in that: The boss (201) is of an L-shaped structure. The shape of the installation hole (101) on the integral top cover (1) matches the shape of the corresponding side face of the boss (201). The installation hole (101) on the integral top cover (1) is inserted into the corresponding side face of the boss (201) to achieve the guiding installation of the integral top cover (1) and the bottom plate (2).

3. The fixed circuit breaker top cover mounting structure according to claim 1, characterized in that: The front side face of the integral top cover (1) is fixed on the circuit breaker base (4).

4. The fixed circuit breaker top cover mounting structure according to claim 3, characterized in that: An installation plate (102) is provided on the front side face of the integral top cover (1). An installation screw (5) passes through a screw through hole (102a) on the installation plate (102) to lock the integral top cover (1) on the circuit breaker base (4).

5. The mounting structure of the top cover of a fixed circuit breaker according to claim 3, characterized in that: It further includes a secondary terminal (3). The secondary terminal (3) is fixedly installed on the front side face of the integral top cover (1).

6. The fixed circuit breaker top cover mounting structure according to claim 1, characterized in that: The number of the installation holes (101) is three, and they are evenly arranged on the rear end face of the integral top cover (1).

7. The installation structure of the top cover of a fixed circuit breaker according to claim 5, wherein: The secondary terminal (3) is located at the center position of the front side face of the integral top cover (1).

8. The fixed circuit breaker top cover mounting structure according to claim 3, characterized in that: The locking position of the front side face of the integral top cover (1) is located at the center position of the front side face of the integral top cover (1).

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