Mounting structure of molded case circuit breaker

Abstract

The utility model discloses an installation structure of a molded case circuit breaker, the molded case circuit breaker is installed on a drawer body, the drawer body is provided with a wiring terminal, the installation structure comprises a circuit breaker body, and the circuit breaker body is provided with a first wiring terminal and a second wiring terminal; the first wiring end penetrates through the drawer body and extends to the outside, the part, extending to the outside, of the first wiring end is provided with a quick plugging assembly, and the second wiring end is electrically connected with the wiring terminal through a conducting bar. By adopting the structure arrangement, the first wiring end part of the circuit breaker body extends to the outside of the drawer body, and an electrical connection effect is formed through the rapid plugging assembly, so that the whole drawer type switch cabinet is more convenient to connect with the outside, the wiring process is omitted, and meanwhile, the matching is more convenient.

Description

Technical Field

[0001] The utility model relates to the field of electrical technology, in particular to an installation structure of a molded case circuit breaker. Background Art

[0002] Molded case circuit breakers are suitable for different installation environments. Figure 1 As shown in , the molded case circuit breaker is installed in a drawer-type switch cabinet, and the opening and closing operations are realized by operating the operating mechanism in the drawer-type switch cabinet. In this structure, the long side wall of the molded case circuit breaker 100 is arranged in parallel with the rear cover plate 101 of the drawer-type switch cabinet, and the two short side walls of the molded case circuit breaker 100 are respectively provided with wiring terminals, which extend to the outside of the rear cover plate 101 through the conductive bar, thereby realizing the electrical connection effect with the outside. However, this structure increases the width of the entire drawer-type switch cabinet and requires multiple wiring processes.

[0003] For another example, the Chinese utility model patent, with the announcement number "CN216311624U" and the patent name "An operating mechanism for a drawer-type switch cabinet", discloses that the rear cover is parallel to the short side wall of the molded case circuit breaker, eliminating the conductive bus connection of one of the wiring terminals. However, the defect of this structure is that the wiring terminal is fitted with the rear cover, which makes it inconvenient to connect with the outside. Utility Model Content

[0004] Therefore, the technical problem to be solved by the present invention is how to reduce the cost by changing the transmission mode. To this end, a mounting structure of a molded case circuit breaker is provided, wherein the molded case circuit breaker is mounted on a drawer body, and the drawer body is provided with a wiring terminal, comprising:

[0005] The circuit breaker body is provided with a first terminal and a second terminal; the first terminal extends to the outside through the drawer body, a quick connector assembly is provided on the part of the first terminal extending to the outside, and the second terminal is electrically connected to the terminal through a conductive bar.

[0006] The circuit breaker body is provided with a fixing portion, and the fixing portion abuts against the inner wall of the drawer body.

[0007] The bolt passes through the drawer body and is connected with the fixing portion.

[0008] The quick connector assembly comprises at least two groups of connectors, and an insulating partition is arranged between two adjacent groups of connectors.

[0009] The connectors are staggered up and down.

[0010] The connector is provided with a clamping cavity, and the clamping cavity is provided with a clamping opening.

[0011] The clamping cavity is provided with a raised portion near the clamping opening.

[0012] The first wiring terminal is provided with a cavity, and the connectors are respectively accommodated in the cavity.

[0013] The conductive bar is connected to the wiring terminal by bolts or welding.

[0014] The technical solution of the utility model has the following advantages:

[0015] 1. The utility model provides a mounting structure for a molded case circuit breaker. With this structural arrangement, the first terminal portion of the circuit breaker body extends to the outside of the drawer body, and an electrical connection effect is formed through a quick plug-in assembly, making it more convenient to connect the entire drawer-type switch cabinet to the outside, eliminating the wiring process and making the coordination more convenient.

[0016] 2. The utility model provides a mounting structure for a molded case circuit breaker, and the setting of the fixing part forms a limiting fixing effect, so that the connection and fixing between the circuit breaker body and the drawer body is more stable.

[0017] 3. The utility model provides a mounting structure for a molded case circuit breaker, which adopts a bolt fixing method to further improve the fixing strength between the two and prevent the circuit breaker body from shaking during the plug-in and pull-out matching process.

[0018] 4. The utility model provides a mounting structure for a molded case circuit breaker, and the setting of the insulating partition forms an insulating isolation effect.

[0019] 5. The utility model provides a mounting structure for a molded case circuit breaker, which is arranged with an upper and lower staggered distribution, thereby increasing the creepage distance and further improving the overall insulation isolation effect.

[0020] 6. The utility model provides a mounting structure for a molded case circuit breaker. The provision of a raised portion increases the contact area between the connector and the external connection component, improves the overall clamping and fixing effect, and thus improves the stability of the overall electrical connection.

[0021] 7. The utility model provides a mounting structure for a molded case circuit breaker. The setting of the clamping opening allows external connection components to pass through the clamping opening and enter the clamping cavity, thereby improving the electrical connection effect.

[0022] 8. The utility model provides a mounting structure for a molded case circuit breaker. The chamber arrangement further improves the fixing effect of the connector and forms insulation isolation, so that the external connector can better cooperate with the first terminal.

[0023] 9. The utility model provides a mounting structure for a molded case circuit breaker, in which bolt connection or welding connection both achieves electrical connection effects, making the electrical connection more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of the installation structure of the Duke circuit breaker in the background technology;

[0026] Figure 2 A structural schematic diagram of an installation structure of a molded case circuit breaker provided by the utility model;

[0027] Figure 3 A structural schematic diagram of an installation structure of a molded case circuit breaker provided by the utility model;

[0028] Figure 4 A top view of a mounting structure of a molded case circuit breaker provided by the utility model;

[0029] Figure 5 yes Figure 4 A partial enlarged view of part A in the middle.

[0030] Description of reference numerals:

[0031] 11. Drawer body; 12. Circuit breaker body; 13. Conductive bar; 14. Fixing part; 15. Connector; 16. Insulating partition; 17. Chamber; 111. Rear cover; 112. Front cover; 113. Wiring terminal; 121. First wiring terminal; 122. Second wiring terminal; 151. Clamping cavity; 152. Clamping opening; 153. Protrusion; DETAILED DESCRIPTION

[0032] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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 therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0036] Example 1

[0037] This embodiment provides a mounting structure for a molded case circuit breaker, as shown in the attached Figure 2-5 As shown, the molded case circuit breaker is installed on the drawer body 11, and one side of the drawer body 11 is a rear cover plate 111, which is used to form an input and output electrical connection effect with external connection components, and the other side of the drawer body 11 is a front cover plate 112, and the front cover plate 112 and the rear cover plate 111 are located at the front side of the drawer body 11, and the other is located at the rear side of the drawer body 11. The front cover plate 112 is specifically a panel, and the handle cooperates with the operating mechanism on one side of the panel to form the opening and closing operation of the molded case circuit breaker. This is the prior art, so it is not described in detail in this embodiment. The rear cover plate 111 of the drawer body 11 is provided with a wiring terminal 113.

[0038] The mounting structure includes:

[0039] The circuit breaker body 12 is provided with a first terminal 121 and a second terminal 122; the circuit breaker body 12 is a rectangular parallelepiped structure, and the first terminal 121 and the second terminal 122 are respectively located on two short side walls. That is, one is formed in front and one is behind, and the short side wall and the rear cover 111 are arranged in parallel. The first terminal 121 extends to the outside through the rear cover 111 of the drawer body 11, and the part of the first terminal 121 extending to the outside is provided with a quick plug assembly, and the quick plug assembly here realizes the electrical connection effect through plug-in matching. Compared with the electrical connection method of bolt connection, the electrical connection effect can be realized without tools. Here, the number of phase lines of the first terminal 121 is consistent with the number of phase lines of the second terminal 122, which can be adjusted according to actual needs. The second terminal 122 is electrically connected to the terminal 113 through the conductive bar 13. Here, a certain creepage gap is provided between two adjacent conductive bars 13 to prevent creepage. An insulating sleeve may be provided on the conductive bar 13 to improve the insulation level between the two adjacent conductive bars 13 .

[0040] With this structural arrangement, the first terminal 121 of the circuit breaker body 12 partially extends to the outside of the drawer body 11, and an electrical connection effect is formed through the quick connector assembly, making it easier to connect the entire drawer-type switch cabinet to the outside, eliminating the wiring process and making coordination more convenient.

[0041] Specifically, as attached Figure 2 As shown, the circuit breaker body 12 is provided with a fixing portion 14, and the fixing portion 14 abuts against the inner wall of the drawer body 11, specifically against the inner wall of the rear cover plate 111 of the drawer body 11. The setting of the fixing portion 14 forms a limit fixing effect, so that the connection and fixation between the circuit breaker body 12 and the drawer body 11 is more stable. The number of the fixing portions 14 can be selected according to actual needs, and can be one or two or three or four. In this embodiment, only four fixing portions 14 are described as an example, and the four fixing portions 14 are grouped in pairs, one group of which is arranged at the two ends of the top surface of the circuit breaker body 12, and the other group is arranged at the two ends of the bottom surface of the circuit breaker body 12. In addition, the circuit breaker body 12 can also be installed with the rear cover plate 111 in a snap-on manner, and can also be installed with the rear cover plate 111 in a spring-leaf manner.

[0042] Specifically, the bolt passes through the drawer body 11 and is connected to the fixing portion 14. The bolt fixing method further improves the fixing strength between the two and prevents the circuit breaker body 12 from shaking during the plug-in and pull-out matching process. Here, the bolt can pass through the rear cover plate 111 from the outside of the rear cover plate 111 to connect and fix with the fixing portion 14, or the bolt can pass through the fixing portion 14 and the rear cover plate 111 to form a fixation.

[0043] Specifically, as attached Figure 3-5As shown, the quick connector assembly includes at least two groups of connectors 15, and an insulating partition 16 is provided between two adjacent groups of connectors 15. The provision of the insulating partition 16 forms an insulating isolation effect. In this embodiment, the number of connectors 15 is three, so the number of insulating partitions 16 is two, and the two insulating partitions 16 are connected and fixed to the first terminal 121 to form an insulating isolation effect.

[0044] Specifically, the connectors 15 are staggered in distribution. The staggered distribution increases the creepage distance and further improves the overall insulation isolation effect. In this embodiment, there are three connectors 15, so a stepped distribution structure is formed, that is, the first connector 15 is placed in the lowest position, the second connector 15 is placed in the middle position, and the third connector 15 is placed in the highest position, and each connector 15 is not located in the same column.

[0045] Specifically, as attached Figure 5 As shown, the connector 15 is provided with a clamping cavity 151, and the clamping cavity 151 is provided with a clamping opening 152. The setting of the clamping opening 152 allows the external connection component to pass through the clamping opening 152 and enter the clamping cavity 151, thereby improving the electrical connection effect. In this embodiment, the clamping opening 152 is located at the front end of the clamping cavity 151, and the size of the clamping opening 152 is smaller than the size of the clamping cavity 151, thereby forming a shrinking effect. In addition, the elastic clamping effect of the clamping cavity 151 can also be increased by structures such as a retaining spring.

[0046] Specifically, as attached Figure 5 As shown, the clamping cavity 151 is provided with a raised portion 153 near the clamping opening 152. Here, there are two raised portions 153, which are symmetrically arranged and raised toward the opposite raised portion 153 to form a further clamping effect. The arrangement of the raised portion 153 increases the contact area between the connector 15 and the external connection component, improves the overall clamping and fixing effect, and thus improves the stability of the overall electrical connection.

[0047] Specifically, as attached Figure 4 As shown, the first terminal 121 is provided with a chamber 17. In this embodiment, there are three chambers 17, which are arranged from left to right, and the insulating partition 16 is accommodated between two adjacent chambers 17. The first connector 15 is accommodated at the lowest position of the leftmost chamber 17, the second connector 15 is accommodated at the middle position of the middle chamber 17, and the third connector 15 is located at the highest position of the rightmost chamber 17. The connectors 15 are accommodated in the chambers 17 respectively. In simple terms, part of the connector 15 is located in the chamber 17, and the rest of the connector 15 extends outward. The provision of the chamber 17 further improves the fixing effect of the connector 15, and at the same time forms an insulating isolation, so that the external connection part can better form a matching effect with the first terminal 121.

[0048] Specifically, the conductive bar 13 is bolted or welded to the connection terminal 113. Bolt connection or welding connection both achieves an electrical connection effect, making the electrical connection more stable.

[0049] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A mounting structure for a molded case circuit breaker, wherein the molded case circuit breaker is mounted on a drawer body (11), wherein the drawer body (11) is provided with a connection terminal (113), characterized in that: include: A circuit breaker body (12), wherein the circuit breaker body (12) is provided with a first terminal (121) and a second terminal (122); the first terminal (121) passes through the drawer body (11) and extends to the outside, a portion of the first terminal (121) extending to the outside is provided with a quick connector assembly, and the second terminal (122) is electrically connected to the terminal (113) via a conductive bar (13).

2. The installation structure of the molded case circuit breaker according to claim 1, characterized in that: The circuit breaker body (12) is provided with a fixing portion (14), and the fixing portion (14) abuts against the inner wall of the drawer body (11).

3. The installation structure of the molded case circuit breaker according to claim 2, characterized in that: A bolt passes through the drawer body (11) and is connected to the fixing portion (14).

4. The mounting structure of the molded case circuit breaker according to claim 1, characterized in that: The quick connector assembly comprises at least two groups of connectors (15), and an insulating partition (16) is provided between two adjacent groups of connectors (15).

5. The mounting structure of the molded case circuit breaker according to claim 4, characterized in that: The connectors (15) are distributed in an up-and-down staggered manner.

6. The mounting structure of the molded case circuit breaker according to claim 4 or 5, characterized in that: The connector (15) is provided with a clamping cavity (151), and the clamping cavity (151) is provided with a clamping opening (152).

7. The mounting structure of the molded case circuit breaker according to claim 6, characterized in that: The clamping cavity (151) is provided with a raised portion (153) near the clamping opening (152).

8. The mounting structure of a molded case circuit breaker according to claim 4 or 5, characterized in that: The first wiring terminal (121) is provided with a chamber (17), and the connectors (15) are respectively accommodated in the chamber (17).

9. The mounting structure of the molded case circuit breaker according to claim 1, characterized in that: The conductive bar (13) and the connecting terminal (113) are connected by bolts or welding.

Images