Electric leakage module supporting assembly of plastic shell type circuit breaker with residual current

Abstract

The utility model belongs to the technical field of circuit breakers, and relates to a residual current plastic shell type circuit breaker electric leakage module supporting assembly which comprises a base, a base and a base N pole which are detachably arranged on the base, and a support erected on the base and the base N pole. Wherein the base is used for positioning and supporting an A-phase release connecting plate, a B-phase release connecting plate and a C-phase release connecting plate; the base N pole is used for positioning and supporting an N-pole release connecting plate; the support is used for containing a circuit board of the electric leakage module, a hole is formed in the bottom of the support, an open groove is formed in the side wall of the support, and the mutual inductor Dupont line and the power supply Dupont line penetrate into and out of the hole and the open groove. Compared with the prior art, the electric leakage supporting module is arranged above the tripper instead of being arranged between connecting plates of the tripper originally, the three-dimensional space of the plastic shell type circuit breaker with the residual electric leakage is reasonably utilized, damage to a circuit board caused by heating of main loop parts is reduced, the arrangement of an overload alarm non-tripping circuit is fixed, and the reliability of the circuit breaker with the residual electric leakage is improved. And the damage risk of the circuit is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit breakers and relates to a supporting component of a leakage module of a plastic shell type circuit breaker with residual current. Background Art

[0002] In the electronic residual current operated protector, the residual current action function of the product is realized by directly driving the circuit breaker part of the tripping mechanism of the leakage module. During the action, the tripping module is required to have fast action speed and large energy to ensure that the residual current operated protector can be disconnected quickly and accurately when leakage occurs, thereby cutting off the faulty power supply and protecting personal and equipment safety.

[0003] Traditional residual current plastic case circuit breaker leakage modules all place the circuit board in the gap of the release, but the gap is small and not convenient for installation, and the connecting plate heats up when the circuit breaker is working. In a high temperature environment, the shell of the leakage module is oxidized and the performance of the circuit board is degraded. Utility Model Content

[0004] The purpose of the utility model is to provide a residual current plastic shell circuit breaker leakage module support component, which is used to avoid the problem of circuit board performance degradation caused by shell oxidation in the leakage module in a high temperature environment.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A circuit breaker leakage module support assembly, comprising

[0007] Pedestal;

[0008] A base, detachably arranged on the base, for positioning and supporting the tripper coupling plates of phases A, B and C;

[0009] The base N pole is detachably arranged on the base and is used to position and support the N pole release coupling plate;

[0010] The bracket is used to accommodate the circuit board of the leakage module, and is mounted on the base and the N pole of the base. A hole is opened at the bottom and a slot is opened on the side wall. The hole and the slot are used for the DuPont line to pass in and out.

[0011] Furthermore, the holes and slots are used for the power supply DuPont line and the overload alarm non-tripping DuPont line to pass in and out. More specifically, the holes are used for the transformer DuPont line and the power supply DuPont line to pass in and out, and the slots are used for the overload alarm non-tripping DuPont line to pass in and out.

[0012] Furthermore, the A-phase tripper connection plate, the B-phase tripper connection plate, and the C-phase tripper connection plate each include a vertical connection plate and a horizontal connection plate;

[0013] The base includes a bottom plate, and a first clamping seat, a first connecting clamping seat, a second connecting clamping seat, and a second clamping seat arranged on the bottom plate at intervals.

[0014] The upper sides of the first clamping seat and the second clamping seat, and the two sides of the first connecting clamping seat and the second connecting clamping seat are respectively provided with clamping grooves for clamping the vertical connecting plate;

[0015] A vertical plate for supporting a transverse connecting plate is disposed on the front side of the first clamping seat and the second clamping seat, and a U-shaped seat for supporting a mutual inductor is disposed on the front side of the first connecting clamping seat and the second connecting clamping seat.

[0016] Furthermore, the card slots on the first card connector and the second card connector are arranged opposite to the card slots on the adjacent first connection card connector and the second connection card connector;

[0017] The first connection card socket and the adjacent card slots on the second connection card socket are arranged opposite to each other.

[0018] Furthermore, a chamfer is provided on the top of one side wall of the slot.

[0019] Furthermore, a front base positioning block is provided on the front side of the U-shaped seat, and a rear base positioning block is provided on the rear sides of the first connecting card seat and the second connecting card seat.

[0020] The base is provided with

[0021] A base mounting groove is used to accommodate the base, wherein the front side and the rear side of the base mounting groove are respectively provided with a front base positioning groove and a rear base positioning groove, the front base positioning block is limited to be located in the front base positioning groove, and the rear base positioning block is limited to be located in the rear base positioning groove.

[0022] Further, the N-pole release connection plate includes an N-pole vertical connection plate and an N-pole horizontal connection plate;

[0023] The base N-pole includes an N-pole bottom plate, and a third connecting card seat and a third card seat which are arranged on the N-pole bottom plate at intervals;

[0024] The upper side of the third card seat and the side of the third connecting card seat relative to the third card seat are respectively provided with an N-pole card slot for clamping the vertical connecting plate;

[0025] A vertical plate for supporting a transverse connecting plate is disposed on the front side of the third clamping seat, and an N-pole U-shaped seat for supporting a transverse connecting plate is disposed on the front side of the third connecting clamping seat.

[0026] Furthermore, a front N-pole base positioning block is provided at the front side of the N-pole U-shaped seat, and a rear N-pole base positioning block is provided at the rear sides of the first connecting card seat and the second connecting card seat.

[0027] The base is provided with a base N pole mounting groove for accommodating the base N pole, and the front side and the rear side of the base N pole mounting groove are respectively provided with a front base N pole positioning groove and a rear base N pole positioning groove, the front N pole base positioning block is limited to be located in the front base N pole positioning groove, and the rear N pole base positioning block is limited to be located in the rear base N pole positioning groove.

[0028] Furthermore, the U-shaped seat is also provided with a support rod for supporting the bracket.

[0029] Furthermore, a mounting groove is provided at the upper edge of the side wall of the base, a positioning step is provided at the bottom of one side of the bracket, and one side of the bracket is mounted on the base and the N pole of the base through the positioning step embedded in the mounting groove and the other side through a support rod.

[0030] Furthermore, a reverse buckle is provided on the inner upper edge of the front wall of the bracket for limiting the electronic release in the vertical direction.

[0031] Compared with the prior art, the utility model has the following beneficial effects:

[0032] 1) The utility model changes the placement of the leakage support module from between the connecting plates of the release to above the release, rationally utilizes the three-dimensional space of the plastic shell type residual leakage circuit breaker, reduces the damage to the circuit board caused by the heating of the main circuit parts, fixes the layout of the overload alarm non-tripping line, and reduces the risk of line damage.

[0033] 2) In the leakage current module of the utility model, the circuit board is placed on the base, the structure is simple, and the installation is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the assembly of a circuit breaker leakage module support component and a housing, a mutual inductor, and an electronic release in the utility model;

[0035] Figure 2 It is a schematic diagram of the assembly of a circuit breaker leakage module support component, a mutual inductor, and an electronic release in the utility model;

[0036] Figure 3 is a schematic diagram of the structure of the base;

[0037] Figure 4 This is a schematic diagram of the structure of the N pole of the base;

[0038] Figure 5 is a schematic diagram of the structure of the base;

[0039] Figure 6 is a schematic diagram of the structure of the bracket;

[0040] Description of the markings in the figure:

[0041] 1- bracket, 1.1- slot, 1.2- hole, 1.3- buckle, 1.4- positioning step, 2- base, 2.1- front base positioning slot, 2.2- mounting slot, 2.3- rear base positioning slot, 3- base, 3.1- slot, 3.2- U-shaped seat, 3.3- front base positioning block, 3.4- rear base positioning block, 3.5- bottom plate, 3.6- first card seat, 3.7- first connecting seat Connecting card socket, 3.8-second connecting card socket, 3.9-second card socket, 4-release device, 5-base N pole, 5.1-support rod, 5.2-front N pole base positioning block, 5.3-N pole U-shaped seat, 5.4-N pole slot, 5.5-rear N pole base positioning block, 5.6-N pole bottom plate, 5.7-third connecting card socket, 5.8-third card socket, 6-mutual inductor, 7-electronic release device. DETAILED DESCRIPTION

[0042] The following embodiments are implemented based on the above technical solution of the utility model, and provide detailed implementation methods and specific operation processes, but the protection scope of the utility model is not limited to the following embodiments.

[0043] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0044] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0045] Example:

[0046] like Figure 1 and Figure 2 The circuit breaker leakage module support assembly shown in the figure includes a base 2, a base 3, a base N pole 5 and a bracket 1. The base 3 is detachably arranged on the base 2, and is used to position and support the tripper connection plates of phases A, B and C; the base N pole 5 is detachably arranged on the base 2, and is used to position and support the N pole tripper connection plate; the bracket 1 is used to accommodate the circuit board of the leakage module, and is mounted on the base 2 and the base N pole 5, as shown in FIG. Figure 3 As shown, it is a concave square shape, the circuit board in the leakage module is placed in the concave part of the bracket, a hole 1.2 is opened at the bottom, and a slot 1.1 is opened on the side wall. The power supply DuPont line and the transformer DuPont line pass through the hole 1.2, and the DuPont line of the overload alarm in the 3-pole molded case circuit breaker that does not trip passes through the switch through the slot 1.1.

[0047] In some specific embodiments, the A-phase tripper connection plate, the B-phase tripper connection plate, and the C-phase tripper connection plate all include a vertical connection plate and a horizontal connection plate; the base 3, such as Figure 3 As shown, it is a shape of a plane and multiple bosses, including a base plate 3.5, and a first clamping seat 3.6, a first connecting clamping seat 3.7, a second connecting clamping seat 3.8, and a second clamping seat 3.9 arranged at intervals on the base plate 3.5, and the upper sides of the first clamping seat 3.6 and the second clamping seat 3.9 and the two sides of the first connecting clamping seat 3.7 and the second connecting clamping seat 3.8 are respectively provided with clamping grooves 3.1 for clamping the vertical connecting plate; the front sides of the first clamping seat 3.6 and the second clamping seat 3.9 are provided with vertical plates for supporting the horizontal connecting plate, and the front sides of the first connecting clamping seat 3.7 and the second connecting clamping seat 3.8 are provided with a U-shaped seat 3.2 for supporting the mutual inductor 6.

[0048] In some specific embodiments, the card slots 3.1 on the first card seat 3.6 and the second card seat 3.9 are arranged opposite to the card slots 3.1 on the adjacent first connection card seat 3.7 and the second connection card seat 3.8; the adjacent card slots 3.1 on the first connection card seat 3.7 and the second connection card seat 3.8 are arranged opposite to each other.

[0049] In some specific embodiments, a chamfer is provided on the top of one side wall of the slot 3.1.

[0050] In some specific embodiments, a front base positioning block 3.3 is provided on the front side of the U-shaped seat 3.2, a rear base positioning block 3.4 is provided on the rear sides of the first connecting card seat 3.7 and the second connecting card seat 3.8, a base mounting groove for accommodating the base 3 is provided on the base 2, and a front base positioning groove 2.1 and a rear base positioning groove 2.3 are respectively provided on the front and rear sides of the base mounting groove, the front base positioning block 3.3 is limited to be located in the front base positioning groove 2.1, and the rear base positioning block 3.4 is limited to be located in the rear base positioning groove 2.3.

[0051] In some specific embodiments, the N-pole tripper connection plate includes an N-pole vertical connection plate and an N-pole horizontal connection plate; the base N-pole 5, such as Figure 4 As shown, it includes an N-pole bottom plate 5.6, and a third connecting card seat 5.7 and a third card seat 5.8 spaced apart on the N-pole bottom plate 5.6; an N-pole card slot 5.4 for clamping a vertical connecting plate is respectively provided on the upper side of the third card seat 5.8 and on a side of the third connecting card seat 5.7 relative to the third card seat 5.8; a vertical plate for supporting a horizontal connecting plate is provided on the front side of the third card seat 5.8, and an N-pole U-shaped seat 5.3 for supporting a horizontal connecting plate is provided on the front side of the third connecting card seat 5.7.

[0052] In some specific embodiments, a front N-pole base positioning block 5.2 is provided on the front side of the N-pole U-shaped seat 5.3, a rear N-pole base positioning block 5.5 is provided on the rear sides of the first connecting card seat 3.7 and the second connecting card seat 3.8, a base N-pole mounting groove for accommodating the base N-pole 5 is provided on the base 2, and a front base N-pole positioning groove and a rear base N-pole positioning groove are respectively provided on the front and rear sides of the base N-pole mounting groove, the front N-pole base positioning block 5.2 is limited to be located in the front base N-pole positioning groove, and the rear N-pole base positioning block 5.5 is limited to be located in the rear base N-pole positioning groove.

[0053] In some specific embodiments, a support rod 5.1 for supporting the bracket 1 is further provided on the U-shaped seat 5.3.

[0054] In some specific embodiments, a mounting groove 2.2 is provided on the upper edge of the side wall of the base 2, a positioning step 1.4 is provided at the bottom of one side of the bracket 1, and the bracket 1 is mounted on the base 2 and the base N pole 5 on one side through the positioning step 1.4 embedded in the mounting groove 2.2 and the other side through the support rod 5.1.

[0055] In some specific embodiments, a reverse buckle 1.3 is provided on the inner upper edge of the front wall of the bracket 1 for limiting the electronic release 7 in the vertical direction.

[0056] Working principle:

[0057] like Figure 4 As shown, the electronic release 7 is installed on the bracket 1 and the base 2, the positioning step 1.4 on the left side of the bracket 1 is placed on the mounting groove 2.2 on the side wall of the base 2, the step on the right side of the bracket 1 is placed on the support rod 5.1, and the DuPont line of the electronic release 7 passes through the hole 1.2 at the bottom of the bracket 1 to realize the power supply process, and the reverse buckle 1.3 on the front wall of the bracket 1 limits the electronic release 7 in the vertical direction. The front base positioning block 3.3, the rear base positioning block 3.4 and the front N-pole base positioning block 5.2 and the rear N-pole base positioning block 5.5 on the base 3 are respectively installed on the front base positioning groove 2.1 and the rear base positioning groove 2.3 on the base 2. The coupling plate in the release 4 passes through the transformer 6 and is installed on the base 3 and the base N-pole 5. The card slot 3.1 on the base 3 and the N-pole card slot 5.4 on the base N-pole 5 limit the release in the axial direction. The U-shaped seat 3.2 on the base 3 and the U-shaped seat 3.2 on the base N-pole 5 avoid the zero-sequence current transformer. When the switch is three-pole, due to the compact structure, the DuPont line of the external module can pass through the slot 1.1 to the outside of the switch.

[0058] The above description of the embodiments is to facilitate the understanding and use of the utility model by those skilled in the art. It is obvious that those familiar with the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the utility model is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the utility model without departing from the scope of the utility model should be within the scope of protection of the utility model.

Claims

1. A circuit breaker leakage module support assembly, characterized in that: include Base (2); A base (3) is detachably mounted on the base (2) and is used to position and support the tripper coupling plates of the A phase, the B phase and the C phase; The base N pole (5) is detachably arranged on the base (2) and is used for positioning and supporting the N pole release coupling plate; The bracket (1) is used to accommodate the circuit board of the leakage module, and is mounted on the base (2) and the N pole (5) of the base. The bottom is provided with a hole (1.2), and the side wall is provided with a slot (1.1). The hole (1.2) and the slot (1.1) are used for the DuPont line to pass in and out.

2. The circuit breaker leakage module support assembly according to claim 1, characterized in that: The A-phase tripper connection plate, the B-phase tripper connection plate, and the C-phase tripper connection plate all include a vertical connection plate and a horizontal connection plate; The base (3) comprises a bottom plate (3.5), and a first clamping seat (3.6), a first connecting clamping seat (3.7), a second connecting clamping seat (3.8), and a second clamping seat (3.9) which are arranged on the bottom plate (3.5) at intervals. The upper sides of the first clamping seat (3.6) and the second clamping seat (3.9), and the two sides of the first connecting clamping seat (3.7) and the second connecting clamping seat (3.8) are respectively provided with clamping grooves (3.1) for clamping the vertical connecting plate; The front sides of the first clamping seat (3.6) and the second clamping seat (3.9) are provided with a vertical plate for supporting a transverse connecting plate, and the front sides of the first connecting clamping seat (3.7) and the second connecting clamping seat (3.8) are provided with a U-shaped seat (3.2) for supporting a mutual inductor (6).

3. The circuit breaker leakage module support assembly according to claim 2, characterized in that: The card slots (3.1) on the first card seat (3.6) and the second card seat (3.9) are arranged opposite to the card slots (3.1) on the adjacent first connection card seat (3.7) and the second connection card seat (3.8); The first connection card socket (3.7) and the adjacent card slots (3.1) on the second connection card socket (3.8) are arranged opposite to each other.

4. The circuit breaker leakage module support assembly according to claim 2, characterized in that: A chamfer is provided on the top of one side wall of the slot (3.1).

5. The circuit breaker leakage module support assembly according to claim 2, characterized in that: A front base positioning block (3.3) is provided on the front side of the U-shaped seat (3.2), and a rear base positioning block (3.4) is provided on the rear sides of the first connecting card seat (3.7) and the second connecting card seat (3.8). The base (2) is provided with a base installation groove for accommodating the base (3); the front side and the rear side of the base installation groove are respectively provided with a front base positioning groove (2.1) and a rear base positioning groove (2.3); the front base positioning block (3.3) is limited to be located in the front base positioning groove (2.1); and the rear base positioning block (3.4) is limited to be located in the rear base positioning groove (2.3).

6. The circuit breaker leakage module support assembly according to claim 2, characterized in that: The N-pole release connecting plate includes an N-pole vertical connecting plate and an N-pole horizontal connecting plate; The base N-pole (5) comprises an N-pole bottom plate (5.6), and a third connecting card seat (5.7) and a third card seat (5.8) arranged at intervals on the N-pole bottom plate (5.6); An N-pole slot (5.4) for clamping a vertical connection plate is respectively provided on the upper side of the third clamping seat (5.8) and on one side of the third connecting clamping seat (5.7) relative to the third clamping seat (5.8); The front side of the third clamping seat (5.8) is provided with a vertical plate for supporting the transverse connecting plate, and the front side of the third connecting clamping seat (5.7) is provided with a vertical plate for supporting the transverse connecting plate.

7. The circuit breaker leakage module support assembly according to claim 6, characterized in that: A front N-pole base positioning block (5.2) is provided on the front side of the N-pole U-shaped seat (5.3), and a rear N-pole base positioning block (5.5) is provided on the rear sides of the first connecting card seat (3.7) and the second connecting card seat (3.8). The base (2) is provided with a base N-pole mounting groove for accommodating the base N-pole (5); the front side and the rear side of the base N-pole mounting groove are respectively provided with a front base N-pole positioning groove and a rear base N-pole positioning groove; the front N-pole base positioning block (5.2) is limited to be located in the front base N-pole positioning groove; and the rear N-pole base positioning block (5.5) is limited to be located in the rear base N-pole positioning groove.

8. The circuit breaker leakage module support assembly according to claim 6, characterized in that: The U-shaped seat (5.3) is also provided with a support rod (5.1) for supporting the bracket (1).

9. The circuit breaker leakage module support assembly according to claim 8, characterized in that: The upper edge of the side wall of the base (2) is provided with a mounting groove (2.2); a positioning step (1.4) is provided at the bottom of one side of the bracket (1); one side of the bracket (1) is mounted on the base (2) and the N pole (5) of the base via the positioning step (1.4) embedded in the mounting groove (2.2) and the other side via a support rod (5.1).

10. The circuit breaker leakage module support assembly according to claim 1, characterized in that: A reverse buckle (1.3) is provided on the inner upper edge of the front wall of the bracket (1) for limiting the position of the electronic release (7) in the vertical direction.

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