CN102456996A

CN102456996A - Lightning-protecting module for lightning-protecting socket

Info

Publication number: CN102456996A
Application number: CN2011100922617A
Authority: CN
Inventors: 陈石; 孙玉培; 许由生; 徐忠厚
Original assignee: Xiamen Set Electronics Co Ltd
Current assignee: Xiamen Set Electronics Co Ltd
Priority date: 2011-04-12
Filing date: 2011-04-12
Publication date: 2012-05-16
Anticipated expiration: 2031-04-12
Also published as: CN102456996B

Abstract

The invention relates to an integrated full-mode protecting module built in a socket, which comprises a first module assembly and a second module assembly, wherein an alloy temperature fuse and an MOV (Metal Oxide Varistor) are serially connected between a power line L and a null line N, thereby forming the first module assembly; a second MOV and a third MOV are respectively serially connected between the power line L and a ground wire G and between the null line N and the ground wire G, are in parallel connection and then are serially connected with one alloy temperature fuse together, thereby forming the second module assembly; a surging overvoltage can be efficiently absorbed by the MOVs between the power line L and the null line N (L-N), between the power line L and the ground wire G (L-G) and between the null line N and the ground wire G (N-G) in the module; and a fire disaster caused by invalid MOVs or temporary overvoltage can be efficiently avoided by the built-in alloy temperature fuses close to the surfaces of the MOVs.

Description

The lightning-protection module that a kind of Thunder preventing socket is used

Technical field

The present invention relates to a kind of device of using with the Thunder preventing socket of full mould defencive function, particularly its core component lightning protection unit integrated, safer protection mode.

Background technology

Along with the extensive use of microelectronic device, for the overvoltage that prevents to introduce from mains side, thunder and lightning for example, various lightning protection devices and obtain to use widely.The lightning protection device of final stage seems more important.Wherein using in a large number all over the world with Anti-thunder power socket.Because the lightning protection power distributor is usually placed on the table or on the floor, the fire incident that causes owing to this lightning protection device seems quite serious.

Arrival from Electrification Age; People are for ease with the power consumption equipment energized; Designed and very used widely the socket and the plug of fast insert-pull mode, and socket has been made into the movably socket of wall mounted mounting means, band extending wire, wherein on the socket of various secured fashions; Add pcb board, and on pcb board, increased overcurrent switch, overvoltage crowbar, remote control switching circuit etc.In order to make socket have lightning protection function, people in circuit parallel connection piezo-resistance (hereinafter to be referred as MOV), and the Thermal Cutoffs element that adopts connects with MOV, and two devices are drawn close, and the employing heat-shrinkable T bush tightens, and catches fire to prevent MOV; But true in this mounting means can not effectively prevent catching fire of MOV.

Summary of the invention

What the present invention proposed is a kind of integrated full mould protection module that can be built in the socket; MOV between live wire-part in the module (L-N), live wire-ground wire (L-G), the zero line-ground wire (N-G) can absorb overvoltage surge effectively, and the built-in alloy-type temperature fuse that is close proximity to the MOV surface can be avoided the fire phenomena that produces because of MOV inefficacy or temporary overvoltage effectively.

Description of drawings

Accompanying drawing 1 is a broken section structure chart of the present invention

Accompanying drawing 2 is circuit diagrams of the present invention

Accompanying drawing 3a is a cut-away view of the present invention

Accompanying drawing 3b is the built-in parts disassembly diagram of the present invention

Accompanying drawing 4 is composition diagrams of the built-in components A of the present invention

Accompanying drawing 5 is composition diagrams of the built-in part B of the present invention

Embodiment

Further narrate below in conjunction with accompanying drawing 1 to 5 specific embodiments of the invention, therein, what stated is for preferred embodiment purpose of the present invention is described, rather than in order to limit above-mentioned purpose.

As shown in the figure 2, present embodiment be built in the integrated full mould protection module in the socket, the MOV of an alloy-type temperature fuse of series connection constitutes first modular assembly, like the 301A among Fig. 3 a between L-N; And respectively having adopted a MOV between the L-G, N-G, the alloy-type temperature fuse of connecting jointly again after these two MOV parallel connections constitutes second modular assembly, like the 301B among Fig. 3 a.

Shown in Fig. 3 b, the first modular assembly 301A and the second modular assembly 301B spatially misplace mutually and aggregate into one 301, reduce whole volume to greatest extent, to satisfy the demand of volume miniaturization; First, second modular assembly combination back 301 is built in the shell 302, adopts epoxy resin, silicones, inorganic filler to wait the embedding remaining space inside, like needs, also available base plate carries out the encapsulation of shell oral area.

The part of the first modular assembly 301A shown in Figure 4 with form structure, on the ceramic nude film 401 of MOV, applied conductive silver layer 402A, the 402B on two sides, and then formed the electrical characteristic of MOV; Adopt tin solder that electrode 403,404 weld respectively and

conductive silver layer

402A, 402B last; And the lead-in wire 405 that is welding the lead-in wire 406 of Thermal Cutoffs on the electrode 404 and externally extending; The lead-in wire 406 of Thermal Cutoffs is two surfaces having crossed over MOV after the bending, and is assembled into complete Thermal Cutoffs at the outside and heat-sensitive alloy 408, another lead-in wire 407 that externally extends of Thermal Cutoffs, the disconnected agent 409 of fluxing, shell 410, the joint filling material 411 of the electrode 403 of MOV; The shell of this Thermal Cutoffs will be near the electrode on the MOV 403.

As shown in Figure 5, the part of the second modular assembly 301B and composition structure, last at ceramic nude film 501A, the 501B of two MOV, apply conductive silver layer 502A, 502B and 502C, the 502D on two sides respectively, and then formed the electrical characteristic of MOV; Adopt tin solder that electrode 503,504A, 504B, 505 welds respectively and conductive silver layer 502A, 502B, 502C, 502D last, make MOV501A, electrode 504A, electrode 504B, MOV501B, electrode 505 form stepped construction; Wherein electrode 504A and 504B are the structures of the doubling of a disjunctor; And the lead-in wire 512 that in doubling, is welding the lead-in wire 506 of Thermal Cutoffs in the heart and externally extending; The lead-in wire 506 of Thermal Cutoffs is with two surfaces having crossed over MOV501A after the bending; And the heat-sensitive alloy 508 of the outside of the electrode on MOV501A 503 and Thermal Cutoffs, another lead-in wire 507 that externally extends, the disconnected agent 509 of fluxing, shell 510, joint filling material 511 be assembled into complete Temperature protection, and the shell of this Thermal Cutoffs will be near the electrode that is welding on the MOV501A 503; Then welding the lead-in wire 513,514 that externally extends on the electrode 503,505 respectively.

Claims

1. an integrated full mould protection module that is built in the socket comprises first, second modular assembly, and first modular assembly is an alloy-type temperature fuse of series connection and a MOV between live wire L-zero line N; Second modular assembly is second, third MOV that between live wire L-ground wire G, zero line N-ground wire G, respectively connects, the alloy-type temperature fuse of connecting jointly again after second and third MOV parallel connection.

2. a kind of integrated full mould protection module that is built in the socket according to claim 1; It is characterized in that the spatially mutual dislocation of first modular assembly (301A) and second modular assembly (301B) aggregates into one (301); First, second modular assembly combination back (301) is built in the shell (302), adopts epoxy resin, silicones, inorganic filler to wait the encapsulation of embedding remaining space inside.

3. a kind of integrated full mould protection module that is built in the socket according to claim 1; The part and composition structure that it is characterized in that first modular assembly (301A); Be on the ceramic nude film (401) of MOV, apply conductive silver layer (402A), (402B) on two sides; Electrode (403), (404) are welded on respectively on conductive silver layer (402A), (402B); And electrode (404) is gone up the lead-in wire (406) of welding temperature fuse and the lead-in wire (405) that externally extends; Two surfaces of MOV are crossed in the crooked back of the lead-in wire of Thermal Cutoffs (406), is connected with the heat-sensitive alloy (408) of Thermal Cutoffs, and and another externally lead-in wire (407), the disconnected agent (409) of fluxing, shell (410), joint filling material (411) of extension are assembled into complete Thermal Cutoffs; The shell of this Thermal Cutoffs will be near the electrode on the MOV (403).

4. a kind of integrated full mould protection module that is built in the socket according to claim 1; The part and composition structure that it is characterized in that second modular assembly (301B); On the ceramic nude film (501A) of second, third MOV, (501B); Apply respectively the conductive silver layer (502A), (502B) on two sides and (502C), (502D); With electrode (503), (504A), (504B), (505) weld respectively with conductive silver layer (502A), (502B), (502C), (502D) on, make MOV (501A), electrode (504A), electrode (504B), MOV (501B), electrode (505) cambium layer stack structure; Electrode (504A) and (504B) be the structure of the doubling of a disjunctor wherein; And the lead-in wire (512) that in doubling, is welding the lead-in wire (506) of Thermal Cutoffs in the heart and externally extending; Two surfaces of MOV (501A) are crossed in the crooked back of the lead-in wire of Thermal Cutoffs (506); Be connected with the heat-sensitive alloy (508) of Thermal Cutoffs, and and another lead-in wire (507), the disconnected agent (509) of fluxing, shell (510), joint filling material (511) that externally extends be assembled into complete Temperature protection, the shell of this Thermal Cutoffs will be near the electrode (503) that is welding on the MOV (501A); Then welding lead-in wire (513), (514) of externally extending on electrode (503), (505) respectively.