A compact leakage protection module

Abstract

The present invention relates to a compact leakage protection module, which includes a bottom plate, a circuit board arranged at the bottom of the bottom plate, a first positioning block for arranging a relay, a second positioning block for arranging a varistor and a magnetic ring, a first elastic piece, a second elastic piece and a cross bar. Clamping blocks are respectively arranged on the side surfaces of the first positioning block and the second positioning block, and buckles corresponding to the clamping blocks are arranged on the side surface of the bottom plate. Among them, a first cavity for placing the relay is arranged in the first positioning block, a second cavity and a third cavity for placing the varistor and the magnetic ring are arranged in the second positioning block. One ends of the first elastic piece and the second elastic piece are fixed in the second positioning block, and the other ends are detachably arranged in the first positioning block. The cross bar is clamped and fixed at the joint of the first positioning block and the second positioning block. The relay is used to drive the cross bar to act and drive the first elastic piece or the second elastic piece to act. The structure of the present application is compact, the overall volume is small, and it is convenient for disassembly and fixing.

Description

Technical Field

[0001] The present invention relates to an electrical component, and particularly to a compact leakage protection module. Background Art

[0002] A leakage protector, abbreviated as a leakage switch, also called a leakage circuit breaker, is mainly used to protect against leakage faults of equipment and fatal electric shock to people. It has overload and short - circuit protection functions, can be used to protect the overload and short - circuit of lines or motors, and can also be used for infrequent conversion and start - up of lines under normal circumstances. However, the existing leakage protectors have a relatively complex structure and cannot effectively constrain inductive components such as relays and magnetic rings, resulting in a loose structure and a large overall volume, which does not conform to the current development trend of miniaturized structures. Summary of the Invention

[0003] The object of the present invention is to provide a compact leakage protection module, which has a compact structure, a small overall volume, and is convenient for disassembly, assembly and fixation.

[0004] To achieve the above object, the technical solution adopted by the present invention is:

[0005] The present invention provides a compact leakage protection module, including a bottom plate, a circuit board disposed at the bottom of the bottom plate, a first positioning block for setting a relay, a second positioning block for setting a varistor and a magnetic ring, a first elastic piece, a second elastic piece and a cross bar. Clamping blocks are respectively disposed on the sides of the first positioning block and the second positioning block, and buckles corresponding to the clamping blocks are disposed on the side of the bottom plate. Among them, a first cavity for placing the relay is provided in the first positioning block, a second cavity and a third cavity for placing the varistor and the magnetic ring are provided in the second positioning block, one ends of the first elastic piece and the second elastic piece are fixed in the second positioning block, and the other ends are detachably disposed in the first positioning block. The cross bar is clamped and fixed at the junction of the first positioning block and the second positioning block, and the relay is used to drive the cross bar to act and drive the first elastic piece or the second elastic piece to act.

[0006] Optionally, an L - shaped first limiting edge is provided at the edge of the first positioning block, and an L - shaped second limiting edge is provided at the edge of the second positioning block. The first limiting edge and the second limiting edge form a U - shaped limiting groove at the junction of the first positioning block and the second positioning block, and the cross bar is clamped in the limiting groove.

[0007] Optionally, output terminals are fixed on the circuit board.

[0008] Optionally, convex limiting columns are respectively provided at the four corners of the bottom plate, and the four corner limiting columns form a placement cavity for setting the circuit board on the bottom plate.

[0009] Optionally, the four corners of the circuit board respectively have L-shaped notches, the limiting posts are rectangular columnar, and the notches at the four corners of the circuit board are clamped at the limiting posts.

[0010] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0011] The compact leakage protection module of the present invention has an overall optimized design at the bottom plate. The circuit board is directly embedded at the bottom of the bottom plate, and another positioning block for fixing the relay and another positioning block for fixing the inductive element are detachably fixed above the circuit board at the bottom plate through a snap-fit buckle and block structure. The overall structure is compact, with a small volume, simplifies the installation structure of each component, is convenient for disassembly and installation, and better meets the needs of users. Description of the Drawings

[0012] Some specific embodiments of the present invention will be described in detail hereinafter with reference to the drawings in an exemplary but non-limiting manner. The same reference numerals in the drawings denote the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0013] Figure 1 is a schematic structural diagram of a compact leakage protection module according to an embodiment of the present invention;

[0014] Figure 2 is Figure 1 a schematic internal structure diagram of the compact leakage protection module shown in the removed bottom plate and circuit board state.

[0015] Among them, the reference numeral descriptions are as follows:

[0016] 1. Bottom plate, 2. Circuit board, 3. First positioning block, 4. Second positioning block, 5. First elastic piece, 6. Second elastic piece, 7. Cross bar, 8. Relay, 9. Varistor, 10. Magnetic ring, 11. First limiting edge, 12. Second limiting edge, 13. Limiting post, 14. Output terminal, 15. Block, 16. Buckle. Detailed Embodiments

[0017] The technical solutions of the present invention will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0018] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is 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 should not be construed as a limitation on the present invention.

[0019] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0020] This embodiment describes a compact leakage protection module, as Figure 1 , Figure 2 shown, including a bottom plate 1, a circuit board 2 provided at the bottom of the bottom plate 1, a first positioning block 3 for setting a relay 8, a second positioning block 4 for setting a varistor 9 and a magnetic ring 10, a first elastic piece 5, a second elastic piece 6 and a cross bar 7. Clamping blocks 15 are respectively provided on the side surfaces of the first positioning block 3 and the second positioning block 4, and buckles 16 are provided on the side surface of the bottom plate 1 corresponding to the clamping blocks 15. Among them, a first cavity for placing the relay 8 is provided in the first positioning block 3, and a second cavity and a third cavity for placing the varistor 9 and the magnetic ring 10 are provided in the second positioning block 4. One ends of the first elastic piece 5 and the second elastic piece 6 are fixed in the second positioning block 4, and the other ends are detachably provided in the first positioning block 3. The cross bar 7 is clamped and fixed at the joint of the first positioning block 3 and the second positioning block 4. The relay 8 is used to drive the cross bar 7 to act and drive the first elastic piece 5 or the second elastic piece 6 to act.

[0021] Optionally, an L-shaped first limiting edge 11 is provided on the edge of the first positioning block 3, and an L-shaped second limiting edge 12 is provided on the edge of the second positioning block 4. The first limiting edge 11 and the second limiting edge 12 form a U-shaped limiting groove at the joint of the first positioning block 3 and the second positioning block 4, and the cross bar 7 is clamped in the limiting groove.

[0022] Optionally, an output terminal 14 is fixed on the circuit board 2.

[0023] Optionally, raised limiting posts 13 are respectively provided at the four corners of the bottom plate 1. The four limiting posts 13 on the bottom plate 1 form a placement cavity for setting the circuit board 2. The four corners of the circuit board 2 respectively have L-shaped notches. The limiting posts 13 are rectangular columnar, and the notches at the four corners of the circuit board 2 are clamped at the limiting posts 13.

[0024] The compact leakage protection module of the present invention is optimized as a whole at the bottom plate 1. The circuit board 2 is directly embedded at the bottom of the bottom plate 1. Another positioning block for fixing the relay 8 and another positioning block for fixing the inductive element are detachably fixed above the circuit board 2 at the bottom plate 1 through a snap-fastening structure of a snap 16 and a block 15. The overall structure is compact, with a small volume, simplifies the installation structure of each component, is convenient for disassembly and installation, and better meets the needs of users.

[0025] The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. It should not be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A compact leakage protection module, characterized in that, It includes a bottom plate, a circuit board disposed at the bottom of the bottom plate, a first positioning block for setting a relay, a second positioning block for setting a varistor and a magnetic ring, a first elastic piece, a second elastic piece and a cross bar. Clamping blocks are respectively disposed on the sides of the first positioning block and the second positioning block, and buckles corresponding to the clamping blocks are disposed on the side surface of the bottom plate. Wherein, a first cavity for placing the relay is disposed in the first positioning block, a second cavity and a third cavity for placing the varistor and the magnetic ring are disposed in the second positioning block, one ends of the first elastic piece and the second elastic piece are fixed in the second positioning block, and the other ends are detachably disposed in the first positioning block. The cross bar is clamped and fixed at the joint of the first positioning block and the second positioning block. The relay is used to drive the cross bar to act and drive the first elastic piece or the second elastic piece to act; An L-shaped first limiting edge is disposed on the edge of the first positioning block, and an L-shaped second limiting edge is disposed on the edge of the second positioning block. The first limiting edge and the second limiting edge form a U-shaped limiting groove at the joint of the first positioning block and the second positioning block, and the cross bar is clamped in the limiting groove; Limit posts protruding from the four corners of the bottom plate are respectively disposed. The limit posts at the four corners form a placement cavity for setting the circuit board on the bottom plate. The four corners of the circuit board respectively have L-shaped notches. The limit posts are in the shape of a cuboid column, and the notches at the four corners of the circuit board are clamped at the limit posts.

2. The compact leakage protection module according to claim 1, characterized in that Output terminals are fixed on the circuit board.

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