CN1134597A

CN1134597A - Two-stage safety protector for electric appliance

Info

Publication number: CN1134597A
Application number: CN 94114051
Authority: CN
Inventors: 葛兴荣
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-12-23
Filing date: 1994-12-23
Publication date: 1996-10-30

Abstract

The two-stage safety protector of the present invention can ensure the safe use of electric appliance and prevent accident. The said protector performs two-stage safety protection via one-stage control and may be used in industry and in household.

Description

Two-stage safety protector for electric appliance

Preamble: require and the international joint needs according to electric equipment products; prevent the electrical equipment accident; guarantee personal safety; electric equipment products should be by adorning reliable two-stage safety guard; but China's prior art level; domestic two-stage safety protector factory and the product that does not still have the manufacturing comprehensive function; connect the first class of protection device quality, performance, qualified products quantitatively still difficulty satisfy customer requirements; In view of the foregoing; this product invention people accumulates scientific research for many years and produces real experience, and domestic initiation design, development, invention have the two-stage safety protector for electric appliance of two-stage comprehensive function.Wherein one-level act as temperature control, and secondary act as safeguard protection.

Contour structures: the two-stage safety protector for electric appliance contour structures has two types, i.e. Class A and Class B.The Class A is conjuncted type (composite type), by two protectors (JW1 and JW2), or more than two, adopts Insulated Housing to install and fix be bound up (seeing accompanying drawing).Connect with series connection method between JW1 and the JW2, shell two ends binding post lead is connected to respectively on power supply and the major product circuit, six and half garden shape louvres are arranged around JW1 and the JW2 seat hole, be convenient to the cooling cooling, the lead place groove of all sunkening cord is convenient to lead fixed between inlet wire and outlet and JW1 and the JW2.Conjuncted in addition type two-stage safety protector, no matter two octangles are still two spherical, all have V-notch can fixedly mount this product on main frame in the middle of the mounting of connection.JW1 and the metal shell of JW2 also are with the good mylar of insulation property outward it cooperate with electrical equipment porcelain or bakelite, plastics class mounting and forms a complete insulation system, and can tolerate the 1200V high pressure did not have and puncture or flashover in one minute.

The conjuncted type two-stage safety protector for electric appliance in Class A is divided into A type and Type B again; its contour structures is identical, Class B be split (from) formula, JW1 and two protectors of JW2 are formed with dispersing mode; be cascaded with lead, also have A, its two-stage safeguard protection effect of Type B and Class A identical.

No matter the Class A still is to cover 3-4 aperture in addition on the product of its Type B of Class B JW2, can insert restorer, reaches the people and moves the purpose that resets, and can make the JW2 protector of permanent disconnection reply connection again, works on.

To the above contour structures; two protectors (JW1 and JW2) are combined with conjuncted (composite type) or split type (separate type); and have electric equipment products two-stage safeguard protection effect, be one of product technology key of the present invention, just one of claimed technical scope of patent right.

Internal structure: no matter Class A A, Type B still are Class B A, Type B, the internal structure of its JW1 and JW2 is identical, mainly form by metal shell, height seat ring, conducting strip, thermo bimetal's substance, dynamic/static contact, trim ring, loam cake, be stamped 3-4 the aperture on Type B product J W2, all the other are basic identical.

Manufacturing process: no matter Class A or Class B, on its A type JW1 and JW2 thermo bimetal original paper are shaped, except that temperature characterisitic requires difference, its R1 and R2 all are shaped, specification requirement is identical, and Class A and Class B Type B, JW1 is different with the JW2 specification requirement, also different on production technology, R1 and the R2 of JW1 all is shaped (two-way moulding, bidirectional-movement), and the JW2 forming technology only becomes out R1, and shapeless R2 (unidirectional shaping, movement in one direction).Manufacturing process and product design of the present invention comprises Class A (conjuncted type) A, Type B manufacturing process and Class B (split type) A, Type B manufacturing process and specification requirement, is two of product technology key of the present invention.Just two of the claimed technical scope of patent right.

Use the above-mentioned contour structures of chatting of employing in performance; internal structure and method of manufacturing technology; JW1 and JW2 are combined; and make two-stage safety protector for electric appliance with the effect of electric equipment products integrated protection, be three (just three of the claimed technical scope of patent claim) of the claimed technical scope of product people of the present invention.

Technical merit: the invention has solved domestic an urgent demand and the existing electric equipment products performance imperfection shortcoming of still not having the electric equipment products two-stage safety guard (device) with integrated protection effect, meets patent application novelty, creation, practical three property requirements regulation.Fill up domestic blank, had the middle nineteen nineties advanced level.

Note: other part of every width of cloth accompanying drawing structure is described as follows from outside to inside one by one:

Figure of description one (conjuncted type): 1, protector porcelain mounting; 2, installing port; 3, louvre; 4, the groove of sunkening cord; 5, JW1 (protector 1); 6, JW2 (protector 2); 7, epoxy plate loam cake; 8, silver-colored screw; 9, lead; 10, metal shell; 11, silver contact; 12, thermo bimetal's original paper; 13, conducting strip; 14, trim ring; 15, height seat ring; 16, reset hole; 17, dielectric film.

Figure of description two (separation type): 1, protector porcelain mounting; 2, installing port; 3, louvre; 4, the groove of sunkening cord; 5, JW1 (protector 1); 6, JW2 (protector 2); 7, epoxy plate loam cake; 8, silver-colored screw; 9, lead; 10, metal shell; 11, silver contact; 12, thermo bimetal's original paper; 13, conducting strip; 14, trim ring; 15, height seat ring; 16, reset hole; 17, dielectric film.

Figure of description three (conjuncted ball-type); 1, protector porcelain mounting; 2, installing port; 3, louvre; 4, the groove of sunkening cord; 5, JW1 (protector 1); 6, JW2 (protector 2); 7, epoxy plate loam cake; 8, silver-colored screw; 9, lead; 10, metal shell; 11, silver contact; 12, thermo bimetal's original paper; 13, conducting strip; 14, trim ring; 15, height seat ring; 16, reset hole; 17, dielectric film.

The specification digest accompanying drawing: in addition part and Figure of description one are identical to be selected from Figure of description one its structure.

Claims

1. use in performance: the technical characterictic of two-stage safety protector for electric appliance; has double protection functions (being the two-stage safeguard protection) when one-level thermal protector (JW1) malfunction and failure to electric equipment products; secondary thermal protector (JW2) is snap action in good time; cut off the electricity supply; the perfect reliability of thermal protector; ensured being perfectly safe of electrical equipment use; under normal circumstances; when one-level thermal protector (JW1) overflows to the main frame temperature-sensitive; the energy automatic disconnection; cut off the electricity supply and treat to automatically reset energized again when temperature drops to safety value.But after secondary thermal protector (JW2) action in a single day, can not automatically reset, need the people to move and reset, but ability energized.

2. on contour structures: its characteristic is to have conjuncted combination and split composition (seeing accompanying drawing 1,2); two identical thermal protectors of structure are cascaded; with porcelain mounting fixedly JW1 and JW2; outsourcing is with dielectric film; there are a plurality of louvres on Type B JW2, to cover all around and also have a plurality of reset holes; lead two is terminated at main frame and power supply, forms complete two-stage safety guard.

3. on manufacturing process, feature is no matter conjuncted or split, its A type JW1 and JW2 bimetallic element except that temperature characterisitic require different, R1 (active layers) and R2 (passive layer) (two-way shaping, the bidirectional-movement) specification requirement that all is shaped is identical.And the R1 (active layers) of the Type B JW1 of conjuncted and split is shaped (two-way shaping, bidirectional-movement) with R2 (passive layer), but requires operating temperature lower.And JW2 forming technology difference, the R1 (active layers) and require operating temperature higher of only being shaped, and shapeless R2 (passive layer) (unidirectional shaping, movement in one direction), above-mentioned special fabrication processes is that product of the present invention forms key.