Polymorphic residual current detection module

Abstract

The utility model discloses a polymorphic residual current detection module comprising a housing body, the side surface of the housing body is provided with a cover plate body, and a skeleton module group is arranged between the cover plate body and the housing body. A cross-shaped partition plate body is mounted in the through hole of the shell body, a cross-shaped partition plate buckle is arranged in the cross-shaped partition plate body, and a second mounting hole is formed in the cross-shaped partition plate body. The framework module used in the product enables the mutual inductor, the framework, the shielding cover and the circuit board to form a whole, the module only needs to be placed in the shell during production, production is convenient, the interior of the product is a whole, glue pouring for fixation is not needed, production efficiency of the product is improved, working hours are reduced, production cost is saved, miniaturization of the product can be achieved, and production cost is reduced. The signal connector on the circuit board is sealed by the plugboard, so that the connector can be a straight pin or a curved pin, the connector is horizontally mounted when the straight pin is used, the connector is vertically mounted when the curved pin is used, and the application scene of the product is expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of current detection, and more specifically to a multi-form residual current detection module. Background Art

[0002] The RCD residual current protection module is a device used to detect the magnitude of leakage current in the circuit. If such a module device is not installed in the circuit, in simple terms, when a person or animal comes into contact with high voltage, a leakage current will be generated to the ground. When the leakage current exceeds a certain threshold, it will cause the heart of the person or animal to fibrillate, causing cardiac arrest, which will then cause the person or animal to suffocate and endanger life. If a leakage detection device such as RCD is installed in the circuit, when there is leakage current in the circuit and the magnitude of the leakage current exceeds the set threshold, it will send an alarm signal to the action mechanism, triggering the action mechanism to quickly disconnect the circuit to achieve the purpose of protecting life safety.

[0003] The existing residual current detection modules have various product models due to different application scenarios, and their installation methods cannot meet various application scenarios. Therefore, it is necessary to provide a new technical solution to solve the problem. Utility Model Content

[0004] The purpose of the utility model is to provide a multi-form residual current detection module, which solves the problem that the existing residual current detection modules have various product models due to different application scenarios and their installation methods cannot meet the needs of various application scenarios.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-form residual current detection module, comprising: a shell body, a cover body is arranged on the side of the shell body and a skeleton module is arranged between the cover body and the shell body, a cross partition body is installed in the through hole of the shell body and a cross partition buckle is arranged inside the cross partition body, a second mounting hole is arranged inside the cross partition body, a first mounting hole corresponding to the second mounting hole is arranged at the edge of the shell body, a partition slot and a main circuit slot are arranged on the surface of the shell body, and the partition slot and the cross partition buckle are interlocked with each other The first mounting hole and the second mounting hole are provided with a main circuit body inside and the main circuit body and the main circuit card slot are interlocked with each other, the skeleton module includes a skeleton body and two groups of shielding covers are provided on the side of the skeleton body, a zero-sequence current transformer is provided between the shielding covers, a welding cold plug pin is provided at the bottom of the skeleton body and a circuit board is provided at the lower part of the welding cold plug pin, a connector is provided on the surface of the circuit board and the welding cold plug pin is welded and fixed to the circuit board, a plug board body is provided at the lower part of the cover body and plug board slide rails are provided on both sides of the plug board body, and the plug board body is connected to the cover body through the plug board slide rails.

[0006] As a preferred embodiment of the utility model, the side surface of the skeleton body is provided with outer ring fixing columns and inner ring fixing columns corresponding to each other, and the zero-sequence current transformer is interlocked with the outer ring fixing columns and the inner ring fixing columns.

[0007] As a preferred embodiment of the present invention, a wire groove and a frame anti-foolproof column are provided at the bottom of the frame body.

[0008] As a preferred embodiment of the utility model, a plug-in card slot is arranged inside the plug-in card body and a plug-in card buckle is arranged at the bottom of the shell body, and the plug-in card slot and the plug-in card buckle are interlocked.

[0009] As a preferred embodiment of the present invention, a shell buckle is arranged inside the shell body and a cover plate slot is arranged inside the cover plate, and the shell buckle and the cover plate slot are interlocked with each other.

[0010] As a preferred embodiment of the present invention, a positioning column is arranged on the inner side of the shell body and a penetration hole is arranged inside the cover plate, and the positioning column and the penetration hole correspond to each other.

[0011] As a preferred embodiment of the present invention, a plurality of groups of cover plate isolation bosses are arranged on the side of the cover plate body and a plurality of groups of shell isolation bosses are arranged on the side of the shell body.

[0012] As a preferred embodiment of the present invention, the connector may be one of a plastic housing wiring harness connector, a straight pin connector or a bent pin connector.

[0013] As a preferred embodiment of the present invention, the first mounting hole and the second mounting hole are both circular through holes, and a circle of circular bosses are arranged inside the through holes along the outer contour of the through holes.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The utility model uses a cross partition body with mounting holes to fix the main circuit body. The cross partition body can be removed when the main circuit body is not installed. Because the main circuit mounting holes are on the cross partition body, the middle through hole of the product has no features after the cross partition body is removed, and does not affect the threading installation. It expands the application scenarios of the product, and the cross partition body is installed on the shell by snap buckles, so the product is firm and stable. The main circuit body is installed through the main circuit mounting holes, which reduces the contact area between the mounting holes and the main circuit, helps the installation of the main circuit, improves product production efficiency, reduces working hours, improves product yield, and saves costs. The skeleton module used inside the product makes the mutual inductor, skeleton, shielding cover and circuit board form a whole. During production, it only needs to put the module into the shell, which is convenient for production. Because the inside of the product is a whole, it does not need to be fixed with glue, which improves product production The signal connector on the circuit board is closed with a plug-in board, so the connector can be selected as a straight pin or a bent pin. When a straight pin is used, it is installed horizontally, and when a bent pin is used, it is installed vertically, expanding the product application scenario; the mutual inductor is wrapped with a shielding cover, so it can offset most of the external electromagnetic interference and improve the accuracy and anti-interference of leakage detection; there are anti-fool columns on the skeleton body to avoid reverse welding when the skeleton is welded to the circuit board, thereby improving the production manufacturability. There are product auxiliary positioning columns on the shell body, and the product is more firm and stable when used; the skeleton is made of bakelite material, and when welding the transformer outlet, it can be automatically welded in a tin furnace, which improves product production efficiency, reduces working hours, and saves production costs. Because the mutual inductor is perpendicular to the PCBA, the bottom area of ​​the product can be reduced, and the installation area occupied by the application end can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the explosion structure of the detection module of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of the skeleton module of the utility model;

[0018] Figure 3 This is a schematic diagram of the explosion structure of the skeleton module of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the skeleton body of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the plug board body of the utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the housing body of the utility model;

[0022] Figure 7 This is a schematic diagram of the structure of the housing body of the utility model from another angle;

[0023] Figure 8This is a schematic diagram of the cover structure of the utility model;

[0024] Fig. 9 This is a schematic diagram of the structure of the cover plate of the utility model from another angle;

[0025] Fig.10 This is a schematic diagram of the cross partition body structure of the utility model;

[0026] Fig.11 This is a schematic diagram of the structure of the utility model after the detection module is assembled;

[0027] Fig.12 This is a structural schematic diagram of another angle after the detection module of the utility model is assembled.

[0028] In the figure: 1. main circuit body; 2. cross partition body; 3. shell body; 4. skeleton module; 5. cover body; 6. plug-in board body; 7. circuit board; 8. connector; 9. skeleton body; 10. shielding cover; 11. zero-sequence current transformer; 12. outer ring fixing column; 13. inner ring fixing column; 14. wire trough; 15. skeleton anti-fool column; 16. welding cold plug pin; 17. plug-in board slot; 18. plug-in board slide rail; 19. partition slot; 20. main circuit slot; 21. first mounting hole; 22. positioning column; 23. shell buckle; 24. plug-in board buckle; 25. shell isolation boss; 26. cover slot; 27. through hole; 28. cover isolation boss; 29. ​​cross partition buckle; 30. second mounting hole. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0030] See also Figure 1-12The utility model provides a technical solution: a multi-form residual current detection module, comprising: a shell body 3, a cover body 5 is arranged on the side of the shell body 3, and a skeleton module 4 is arranged between the cover body 5 and the shell body 3, a cross partition body 2 is installed in the through hole of the shell body 3, and a cross partition buckle 29 is arranged inside the cross partition body 2, a second mounting hole 30 is arranged inside the cross partition body 2, a first mounting hole 21 corresponding to the second mounting hole 30 is arranged at the edge of the shell body 3, a partition slot 19 and a main circuit slot 20 are arranged on the surface of the shell body 3, and the partition slot 19 and the cross partition buckle 29 are mutually embedded, and the first mounting hole The main circuit body 1 is arranged inside the second mounting hole 30 and the main circuit body 1 is interlocked with the main circuit card slot 20. The skeleton module 4 includes a skeleton body 9 and two sets of shielding covers 10 are arranged on the side of the skeleton body 9. A zero-sequence current transformer 11 is arranged between the shielding covers 10. A welding cold plug pin 16 is arranged at the bottom of the skeleton body 9 and a circuit board 7 is arranged at the lower part of the welding cold plug pin 16. A connector 8 is arranged on the surface of the circuit board 7 and the welding cold plug pin 16 is welded and fixed to the circuit board 7. A plug board body 6 is arranged at the lower part of the cover body 5 and plug board slide rails 18 are arranged on both sides of the plug board body 6. The plug board body 6 is connected to the cover body 5 through the plug board slide rails 18. First, the first step is to assemble the skeleton module 4, install the shielding cover 10 to both sides of the zero-sequence current transformer 11, and then install the skeleton. The outer ring positioning column 22 and the inner ring positioning column 22 on the skeleton are used for limiting. The transformer outlet is wound onto the cold plug pin through the wire groove 14, and the transformer outlet and the cold plug pin are automatically welded through the tin furnace. The skeleton anti-fool column 15 is inserted into the circuit board 7 for positioning and anti-fool, and the welding cold plug pin 16 is inserted into the circuit board 7 for welding. The skeleton is perpendicular to the circuit board 7, and the module assembly is completed; then the skeleton module 4 is installed into the shell, and the through hole of the skeleton module 4 is coaxial with the through hole of the shell body 3, and the connector 8 is exposed through the open end of the shell body 3; the cover body 5 is buckled into the shell body 3 for installation and fixed by the shell buckle 23; the plug board body 6 The cover plate body 5 is inserted into the slot of the plug-in plate slide rail 18 on the cover plate body 5 for installation, and the plug-in plate body 6 is close to the connector 8. Before installing the plug-in plate body 6, the connector 8 can be replaced to select whether the product is vertical or horizontal; the cross partition body 2 is buckled into the through hole of the shell body 3 for installation, and is fixed by the cross partition buckle 29 and the partition card slot 19 on the shell; the four main circuit bodies 1 are installed into the cross partition body 2 and the first installation hole 21, and the X and Y directions of the main circuit body 1 are positioned through the installation holes, and the Z direction of the main circuit body 1 is positioned through the main circuit card slot 20 on the shell. The product is assembled and after the installation is completed, the main circuit body 1 protrudes from the cover plate body 5 surface, the auxiliary positioning column 22 on the shell protrudes from the cover plate surface, and the connector 8 protrudes from the cover plate surface.

[0031] Further improvements, such as Figure 4As shown: the side of the skeleton body 9 is provided with outer ring fixing columns 12 and inner ring fixing columns 13 corresponding to each other, the zero-sequence current transformer 11 is interlocked with the outer ring fixing columns 12 and the inner ring fixing columns 13, and the setting of the outer ring fixing columns 12 and the inner ring fixing columns 13 ensures the stability and accuracy of the transformer installation.

[0032] Further improvements, such as Figure 4 As shown: the bottom of the skeleton body 9 is provided with a wire groove 14 and a skeleton anti-fool column 15, the skeleton anti-fool column 15 is used to prevent the skeleton and the circuit board 7 from being installed upside down when welding, and a group of wire grooves 14 are opened on the outer ring positioning column 22 of the mutual inductor near the skeleton anti-fool column 15 for the mutual inductor coil output wire to be welded to the circuit board 7.

[0033] Further improvements, such as Figure 5 As shown: a board slot 17 is provided inside the board body 6 and a board buckle 24 is provided at the bottom of the shell body 3, the board slot 17 and the board buckle 24 are interlocked with each other, the board body 6 is a rectangular thin sheet, one side of which has a board slot 17 for cooperating with the board buckle 24 to fix the board.

[0034] Further improvements, such as Figure 7 , 8 As shown: a shell buckle 23 is provided inside the shell body 3 and a cover plate slot 26 is provided inside the cover plate, and the shell buckle 23 and the cover plate slot 26 are interlocked with each other. This arrangement ensures the stability of the installation between the cover plate body 5 and the shell body 3.

[0035] Further improvements, such as Figure 7 , 9 As shown: a positioning column 22 is provided on the inner side of the shell body 3 and a through hole 27 is provided inside the cover plate. The positioning column 22 and the through hole 27 correspond to each other and are used to assist and strengthen the positioning when the product is used.

[0036] Further improvements, such as Figure 7 , 9 As shown, a plurality of groups of cover plate isolating bosses 28 are disposed on the side of the cover plate body 5 and a plurality of groups of shell isolating bosses 25 are disposed on the side of the shell body 3 .

[0037] Further improvements, such as Figure 3 As shown: the connector can be one of a plastic shell wiring harness connector, a straight pin connector or a bent pin connector. The connector can be replaced according to the installation method. When a straight pin is used, it is installed horizontally, and when a bent pin is used, it is installed vertically.

[0038] Further improvements, such as Fig.10As shown: the first mounting hole and the second mounting hole are both circular through holes and a circle of circular bosses are arranged inside the through holes along the outer contour of the through holes, and the diameter of the virtual circle connected by the tangent points of the outer contours of the circular bosses of each mounting hole is equal to the main circuit diameter.

[0039] Working principle: First, assemble the skeleton module 4, install the shielding cover 10 to both sides of the zero-sequence current transformer 11, and then install the skeleton. The outer ring positioning column 22 and the inner ring positioning column 22 on the skeleton are used for limiting. The transformer outlet is wound onto the cold plug pin through the wire groove 14, and the transformer outlet and the cold plug pin are automatically welded through the tin furnace. The skeleton anti-fool column 15 is inserted into the circuit board 7 for positioning and anti-fool, and the welding cold plug pin 16 is inserted into the circuit board 7 for welding. The skeleton is perpendicular to the circuit board 7, and the module assembly is completed; then install the skeleton module 4 into the shell, the through hole of the skeleton module 4 is coaxial with the through hole of the shell body 3, and the connector 8 is exposed through the open end of the shell body 3; the cover body 5 is buckled into the shell body 3 for installation and fixed by the shell buckle 23; the plug-in board The body 6 is inserted into the cover plate body 5 through the slot of the plug-in plate slide rail 18 on the cover plate body 5 for installation. The plug-in plate body 6 is close to the connector 8. Before installing the plug-in plate body 6, the connector 8 can be replaced to select whether the product is vertical or horizontal; the cross partition body 2 is buckled into the through hole of the shell body 3 for installation, and is fixed by the cross partition buckle 29 and the partition card slot 19 on the shell; the four main circuit bodies 1 are installed into the cross partition body 2 and the first installation hole 21, the X and Y directions of the main circuit body 1 are positioned through the installation holes, and the Z direction of the main circuit body 1 is positioned through the main circuit card slot 20 on the shell. The product is assembled and installed. After the installation is completed, the main circuit body 1 protrudes from the cover plate body 5 surface, the auxiliary positioning column 22 on the shell protrudes from the cover plate surface, and the connector 8 protrudes from the cover plate surface.

[0040] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0041] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, and can be mechanical or electrical connections, or internal connectivity between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may change.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A multi-modal residual current detection module, characterized in that: include: A shell body (3), a cover body (5) is arranged on the side of the shell body (3), and a skeleton module (4) is arranged between the cover body (5) and the shell body (3), a cross partition body (2) is installed in the through hole of the shell body (3), and a cross partition buckle (29) is arranged inside the cross partition body (2), a second mounting hole (30) is arranged inside the cross partition body (2), a first mounting hole (21) corresponding to the second mounting hole (30) is arranged at the edge of the shell body (3), a partition slot (19) and a main circuit slot (20) are arranged on the surface of the shell body (3), and the partition slot (19) and the cross partition buckle (29) are mutually engaged, the first mounting hole (21) and the second mounting hole (30) are arranged inside the main circuit body (1), and the main circuit body (1 ) are mutually engaged with the main circuit card slot (20), the skeleton module (4) comprises a skeleton body (9) and two groups of shielding covers (10) are arranged on the side of the skeleton body (9), a zero-sequence current transformer (11) is arranged between the shielding covers (10), a welding cold plug pin (16) is arranged at the bottom of the skeleton body (9) and a circuit board (7) is arranged at the lower part of the welding cold plug pin (16), a connector (8) is arranged on the surface of the circuit board (7) and the welding cold plug pin (16) is welded and fixed to the circuit board (7), the zero-sequence current transformer (11) is vertically mounted on the surface of the circuit board (7), a plug board body (6) is arranged at the lower part of the cover body (5) and plug board slide rails (18) are arranged on both sides of the plug board body (6), and the plug board body (6) is connected to the cover body (5) through the plug board slide rails (18).

2. A multi-modal residual current detection module according to claim 1, characterized in that: The side surface of the skeleton body (9) is provided with outer ring fixing columns (12) and inner ring fixing columns (13) corresponding to each other, and the zero-sequence current transformer (11) is interlocked with the outer ring fixing columns (12) and the inner ring fixing columns (13).

3. The multi-modal residual current detection module according to claim 1, characterized in that: The bottom of the skeleton body (9) is provided with a wire groove (14) and a skeleton anti-fool column (15).

4. The multi-modal residual current detection module according to claim 1, characterized in that: The plug-in board body (6) is provided with a plug-in board slot (17) inside and a plug-in board buckle (24) is provided at the bottom of the shell body (3), and the plug-in board slot (17) and the plug-in board buckle (24) are interlocked.

5. The multi-modal residual current detection module according to claim 1, characterized in that: A shell buckle (23) is provided inside the shell body (3) and a cover plate snap groove (26) is provided inside the cover plate, and the shell buckle (23) and the cover plate snap groove (26) are interlocked.

6. The multi-modal residual current detection module according to claim 1, characterized in that: A positioning column (22) is arranged on the inner side of the shell body (3) and a through hole (27) is arranged inside the cover plate, and the positioning column (22) and the through hole (27) correspond to each other.

7. The multi-modal residual current detection module according to claim 1, characterized in that: The side surface of the cover plate body (5) is provided with a plurality of groups of cover plate isolation bosses (28), and the side surface of the shell body (3) is provided with a plurality of groups of shell isolation bosses (25).

8. The multi-modal residual current detection module according to claim 1, characterized in that: The connector (8) may be one of a plastic housing wiring harness connector, a straight pin connector or a bent pin connector.

9. The multi-modal residual current detection module according to claim 1, characterized in that: The first mounting hole (21) and the second mounting hole (30) are both circular through holes, and a circle of circular bosses are arranged inside the through holes along the outer contour of the through holes.

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