Multi-pole RCD structure with optimized space

Abstract

The utility model relates to a space-optimized multi-pole RCD structure, and belongs to the technical field of leakage protection. According to the utility model, the lower part of the cover plate is provided with the supporting piece which is separated from the wire outlet terminal in the box body, so that the clearance space is established, and one part of the wire inlet terminal and the mutual inductor wire group are accommodated in the box body on the basis of the clearance space; the space layout in the box is further optimized by optimizing the structure of the wire inlet terminal and the internal arrangement of the wire outlet terminal; moreover, through the arrangement of the supporting members, the fastening screws, the shield and other structures, the stress condition of each part in the box is optimized, the stability of the overall structure is improved, the wiring strength of each outgoing line terminal is ensured, the overall insulation electrical performance of the switch is also improved, and the switch position space occupied by the multi-pole RCD on the guide rail is greatly saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of space optimization's multi-pole RCD structure, belong to electric leakage protection technical field. BACKGROUND

[0002] Residual Current Device (RCD) is a kind of safety equipment for detecting leakage current and rapidly cutting off power supply when leakage occurs. RCD is currently widely used in household, commercial and industrial electrical systems to prevent electric shock and electrical fire.

[0003] However, the current multi-pole RCD needs to add multiple switch modules on the guide rail, but due to the size of RCD and the layout of each element, it not only has certain limitations in the selection of small power distribution cabinets and other power distribution facilities with space requirements, but also increases the difficulty of wiring, resulting in reduced work efficiency and increased work difficulty.

[0004] Therefore, there is an urgent need to find a RCD structure that can optimize the layout space of each component on the RCD while facilitating wiring and wiring. SUMMARY

[0005] To solve the above problems, the utility model provides a kind of space optimization's multi-pole RCD structure, comprising:

[0006] Box body, the box body is installed with multiple outgoing terminals;

[0007] Cover plate, cover is set in the upper opening of the box body, the lower part of the cover plate has at least one support abutting on the upper surface of outgoing terminal, and the gap space is formed between the outgoing terminal and the cover plate;

[0008] Multiple incoming terminals are installed through the cover plate, and the part of the incoming terminal below the cover plate corresponds to the position of the outgoing terminal;

[0009] Mutual inductor conductor group, connecting multiple incoming terminals and located below incoming terminal.

[0010] Further, the incoming terminal is L-shaped structure and has vertically connected long arm and short arm, the long arm penetrates the upper surface of the cover plate, and the short arm is located at the bottom of the long arm and is installed on the lower surface of the cover plate.

[0011] Further, the short arm of the incoming terminal is fixed on the lower surface of the cover plate by cover plate buckling.

[0012] Further, the support has four and is located at the four corners of the lower surface of the cover plate, and is columnar structure, the bottom of the support abuts on the upper surface edge of the outgoing terminal.

[0013] Further, the outgoing terminal has four, every two outgoing terminals for a group, two groups of outgoing terminals are symmetrically distributed on both sides of the inside of the box body, and the installation space for placing at least a part of the coil of the transformer wire group is left between the two groups of outgoing terminals.

[0014] Further, each of the outgoing terminals is assembled in the nail frame assembly.

[0015] Further, the left shield and the right shield are respectively arranged on both sides of the combination formed after the outgoing terminal and the nail frame assembly are assembled, and the shield structure formed by detachably splicing the left shield and the right shield can wrap the combination formed after the outgoing terminal and the nail frame assembly are assembled.

[0016] Further, buckles are arranged at the connection of the left shield and the right shield.

[0017] Further, the support is a hollow tubular structure, and a fastening screw is arranged in each of the supports, and the cover plate and the box body can be fixed and connected by adjusting the fastening screw.

[0018] Further, the upper surface of the cover plate is connected with the unhooker module.

[0019] The utility model discloses the beneficial effect:

[0020] The utility model discloses a support is arranged below the cover plate and is separated from the outgoing terminal in the box body, thereby establishing clearance space, and the part of the incoming terminal and the transformer wire group are received into the box body on the basis of the clearance space, the space layout in the box is further optimized through the optimization of the structure of the incoming terminal and the internal arrangement of the outgoing terminal, and through the setting of the support, the fastening screw, the shield and other structures, the stress condition of each component in the box is optimized, the stability of the overall structure is improved, the wiring strength of each outgoing terminal is guaranteed, the insulation electrical property of the switch is also improved, and the switch position space occupied by the multi-pole RCD on the guide rail is greatly saved. DRAWINGS

[0021] Figure 1 It is the schematic diagram of the overall structure after assembly in an embodiment of the utility model;

[0022] Figure 2 It is the explosion view of the overall structure in an embodiment of the utility model;

[0023] Figure 3 It is the assembly schematic diagram of the cover plate and the incoming terminal after inversion in an embodiment of the utility model;

[0024] Figure 4 It is the assembly structure schematic diagram of the outgoing terminal, the nail frame assembly and the shield in an embodiment of the utility model;

[0025] Figure 5 It is a structure schematic view that the support piece abuts the upper surface of the outgoing terminal in an embodiment of the utility model.

[0026] In the figure: 1, box body; 2, left shield; 3, right shield; 4, nail frame assembly; 5, outgoing terminal; 6, cover plate; 7, mutual inductor conducting wire group; 8, incoming terminal; 9, cover plate; 10, fastening screw; 11, release module. DETAILED DESCRIPTION

[0027] The technical scheme of the utility model will be described clearly and completely in combination with the drawings, obviously, the described embodiments are a part of embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the protection scope of the utility model.

[0028] In the description of the utility model, it needs to be explained that the orientation or position relation indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relation based on the shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as the limitation to the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0029] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, can be fixed connection, also can be detachable connection, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through intermediate medium, can be the communication inside two elements. For the person skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0030] Embodiment 1

[0031] As Figures 1-5 shown, the utility model provides a kind of space optimization's multi-pole RCD structure, including:

[0032] Box body 1, the box body 1 is installed with multiple outgoing terminals 5 in it;

[0033] A cover plate 9 is arranged above the opening of the box body 1. The lower part of the cover plate 9 has four support members abutting the upper surface of the outgoing terminal 8. The four support members are arranged at the four corners of the lower surface of the cover plate 9 and have a columnar structure. The bottom of the support member abuts the edge of the upper surface of the outgoing terminal 8. A gap space is formed between the outgoing terminal 8 and the cover plate 9.

[0034] A plurality of incoming terminals 8 are arranged through the cover plate 9. The incoming terminal 8 has an L-shaped structure with a long arm and a short arm connected vertically. The long arm penetrates through the upper surface of the cover plate 9. The short arm is arranged at the bottom of the long arm and is arranged on the lower surface of the cover plate 9. The short arm of the incoming terminal 8 is fixed to the lower surface of the cover plate 9 by the cover plate 6. The position of the short arm corresponds to the position of the outgoing terminal 5.

[0035] A transformer wire group 7 is connected to the plurality of incoming terminals 8 and is arranged below the incoming terminals 8.

[0036] Further, the outgoing terminal 5 can be arranged as four. Each two outgoing terminals 5 form a group. Two groups of outgoing terminals 5 are symmetrically arranged at the two sides of the inside of the box body 1. An installation space is arranged between the two groups of outgoing terminals 5 for placing at least a part of the coil of the transformer wire group 7.

[0037] Further, each of the outgoing terminals 5 is assembled with the nail frame assembly 4. The left shield 2 and the right shield 3 are arranged at the two sides of the combined body formed by the assembly of the outgoing terminal 5 and the nail frame assembly 4. The shield structure formed by detachably splicing the left shield 2 and the right shield 3 can cover the combined body formed by the assembly of the outgoing terminal 5 and the nail frame assembly 4, so as to prevent the disintegration of the assembled outgoing terminal 5 under stress. In order to further ensure the strength of the spliced shield, buckles are arranged at the connection of the left shield 2 and the right shield 3.

[0038] Further, the support member can not only serve as a reinforcing rib of the overall structure, but also serve as a pressure column foot for limiting the upward movement of the outgoing terminal 5. Preferably, the support member has a hollow tubular structure. A fastening screw 10 is arranged in each of the support members. The fastening screw 10 can be adjusted to fixedly connect the cover plate 9 and the box body 1, thereby simplifying the operation difficulty of assembly.

[0039] Further, the upper surface of the cover plate 9 is connected with a decoupler module.

[0040] In addition, the number of outgoing terminals 5 in the box body 1 and the number of corresponding incoming terminals 8 can be selected according to actual needs. The corresponding arrangement is carried out in the box body 1. The RCD terminal block assembly can be used for other different pole numbers. Only the box body 1 and the cover plate 9 with the required size need to be matched with different pole numbers of switches, thereby greatly saving the mold cost of products.

[0041] Although the utility model has disclosed as above with preferable embodiments, it is not used to limit the utility model, anyone familiar with this technology can make various changes and modifications without departing from the spirit and scope of the utility model, therefore the protection scope of the utility model should be limited by the claims.

Claims

1. A spatially optimized multi-pole RCD structure, characterized in that, The utility model relates to a box body, a plurality of outlet terminals are installed in the box body, a cover plate is covered in the upper opening of the box body, the lower part of the cover plate has at least one support abutting the upper surface of the outlet terminal, and a gap space is formed between the outlet terminal and the cover plate. A plurality of incoming terminals are installed through the cover plate, and the part of the incoming terminal below the cover plate corresponds to the position of the outlet terminal. The incoming terminal is an L-shaped structure and has a vertical long arm and a short arm, the long arm penetrates the upper surface of the cover plate, and the short arm is located at the bottom of the long arm and is fitted to the lower surface of the cover plate. The short arm of the incoming terminal is fixed to the lower surface of the cover plate by a cover plate buckle. The support has four and is located at the four corners of the lower surface of the cover plate, and is a columnar structure, the bottom of the support abuts the edge of the upper surface of the outlet terminal.

2. The spatially optimized multi-pole RCD structure of claim 1, wherein, The outlet terminal has four, and each two outlet terminals are a group, two groups of outlet terminals are symmetrically distributed on both sides of the inside of the box body, and an installation space is left between the two groups of outlet terminals for placing at least part of the coil of the mutual inductor wire group.

3. The spatially optimized multi-pole RCD structure of claim 2, wherein, Each of the outlet terminals is assembled with a nail frame assembly.

4. The spatially optimized multi-pole RCD structure of claim 1, wherein, The left and right guards respectively arranged on both sides of the combination formed after the assembly of the outlet terminal and the nail frame assembly can be detachably spliced to form a guard structure capable of covering the combination formed after the assembly of the outlet terminal and the nail frame assembly.

5. The spatially optimized multi-pole RCD structure of claim 4, wherein, The connecting part of the left and right guards is provided with a buckle.

6. The spatially optimized multi-pole RCD structure of claim 1, wherein, The support is a hollow tubular structure, a fastening screw is assembled in each of the supports, and the cover plate and the box body can be fixedly connected by adjusting the fastening screw.

7. The spatially optimized multi-pole RCD structure of claim 6, wherein, The upper surface of the cover plate is connected with an unhooker module.

8. The spatially optimized multi-pole RCD structure of claim 7, wherein, ​ 9. The spatially optimized multi-pole RCD structure of claim 1 or 4, wherein, ​ 10. The spatially optimized multi-pole RCD structure of any of claims 1-8, wherein, ​

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